Overall Green Earthquake alert in United States on 19 Oct 2020 20:54 UTC

GDACS is a cooperation framework between the United Nations, the European Commission and disaster managers worldwide to improve alerts, information exchange and coordination in the first phase after major sudden-onset disasters.

M 7.6 in United States on 19 Oct 2020 20:54 UTC

Global Telecommunication Service

GTS (Global Telecommunication Service) is the official Warning and Alerting channel by the World Meteorological Organization (WMO) adopted by several Warning Organizations. As soon as a new GTS message regarding Tropical Cyclones(WT) or Tsunami(WE) the messages are processed and possibly assigned to the specific event. When a new GTS message is present an new tab in the specific event report page is present.The presence of a GTS message is shown in the homepage with a dedicated icon.

Click on the messages list to visualize on the right the detailed text.

Measurements Levels

SOURCE	GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
NTWC	Sand Point (Alaska)	55.33	-160.49	16:11	0.7	-
NTWC	King Cove (Alaska)	55.06	-162.3	16:36	0.64	-
NTWC	Nikolski (Alaska)	52.93	-168.85	16:37	0.09	-
NTWC	Unalaska (Alaska)	53.86	-166.53	17:58	0.09	-
NTWC	Atka (Alaska)	52.19	-174.21	16:52	0.06	-
NTWC	Chignik Bay (Alaska)	-	-	18:26	0.76	-
PTWC	Chignik Ak	56.3	-158.4	23: 20	0.68	20
PTWC	Dart 46402	51	-164.1	21: 34	0.04	16
PTWC	Sand Point Ak	55.3	-160.5	23: 01	0.67	22
PTWC	King Cove Ak	55.1	-162.3	23: 02	0.68	16
PTWC	Dutch Hbr Unalaska	53.9	-166.5	22: 59	0.07	26

20/10 06:55 WEGM42PHEB192107

20/10 04:08 WEAK51PAAQ200407

20/10 03:06 WEAK51PAAQ200305

20/10 02:05 WEAK51PAAQ200204

20/10 01:08 WEAK51PAAQ200107

20/10 00:36 WEAK51PAAQ200035

20/10 00:19 WEPA42PHEB200018

20/10 00:06 WEAK51PAAQ200005

19/10 23:07 WEAK51PAAQ192306

19/10 22:40 WEAK51PAAQ192239

19/10 22:10 WEPA40PHEB192209

19/10 22:07 WEAK51PAAQ192206

19/10 21:32 WEAK51PAAQ192131

19/10 21:05 WEPA40PHEB192104

19/10 21:04 WEIO24AMMC192103

19/10 21:01 WEAK51PAAQ192100

19/10 20:54 WEIO20DEMS192104

19/10 10:55 WEHW40PHEB200246

19/10 10:55 WEHW40PHEB200355

19/10 10:55 WEHW40PHEB200501

19/10 10:55 WEHW42PHEB192106

19/10 09:55 WEZS42PHEB192106

2020-10-20 06:55 message from NTWC link

Key information extracted from original GTS message :

Evaluation

Original Message :

WEGM42 PHEB 192107

TIBGUM

TSUNAMI INFORMATION STATEMENT NUMBER 1

NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI

707 AM CHST TUE OCT 20 2020

...NO TSUNAMI THREAT TO GUAM/CNMI FROM A DISTANT EARTHQUAKE...

AUDIENCE

--------

EMERGENCY MANAGERS... MEDIA... GENERAL PUBLIC

EVALUATION

----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.4 OCCURRED

SOUTH OF ALASKA AT 655 AM CHST ON TUESDAY OCTOBER 20 2020.

* BASED ON ALL AVAILABLE DATA... THERE IS NO TSUNAMI THREAT TO

GUAM... ROTA... TINIAN OR SAIPAN FROM THIS EARTHQUAKE.

RECOMMENDED ACTIONS

-------------------

* NO ACTION IS REQUIRED.

POTENTIAL IMPACTS

-----------------

* NO TSUNAMI IMPACTS ARE EXPECTED.

PRELIMINARY EARTHQUAKE PARAMETERS

---------------------------------

* MAGNITUDE 7.4

* ORIGIN TIME 655 AM CHST OCT 20 2020

* COORDINATES 54.7 NORTH 159.6 WEST

* DEPTH 25 MILES

* LOCATION SOUTH OF ALASKA

NEXT UPDATE AND ADDITIONAL INFORMATION

--------------------------------------

* THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS

ADDITIONAL DATA ARE RECEIVED OR THE SITUATION CHANGES.

* FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND ON THE

INTERNET AT WWW.TSUNAMI.GOV.

* AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S.

GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT

EARTHQUAKE.USGS.GOV.

$$

2020-10-20 04:08 message from NTWC link

Tsunami Observations

The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level

GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
Sand Point (Alaska)	55.33	-160.49	16:11	0.7	-
King Cove (Alaska)	55.06	-162.3	16:36	0.64	-
Nikolski (Alaska)	52.93	-168.85	16:37	0.09	-
Unalaska (Alaska)	53.86	-166.53	17:58	0.09	-
Atka (Alaska)	52.19	-174.21	16:52	0.06	-
Chignik Bay (Alaska)	-	-	18:26	0.76	-

Original Message :

WEAK51 PAAQ 200407
TSUAK1

BULLETIN
Public Tsunami Message Number 12
NWS National Tsunami Warning Center Palmer AK
807 PM AKDT Mon Oct 19 2020

UPDATES
-------
* There are no updates in this message

...THE TSUNAMI ADVISORY REMAINS IN EFFECT...

Tsunami Advisory in Effect for;

* SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
Kennedy Entrance, Alaska (40 miles SW of Homer) to Unimak
Pass, Alaska (80 miles NE of Unalaska)

For other US and Canadian Pacific coasts in North America,
there is no tsunami threat.

OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED
------------------------------------------
* Observed max tsunami height is the highest recorded water level
above the tide level up to the time of this message.

TIME OBSERVED MAX
SITE OF MEASUREMENT TSUNAMI HEIGHT
---------------------------- ---------------- --------------
Sand Point Alaska 1611 PDT Oct 19 2.3ft
King Cove Alaska 1636 PDT Oct 19 2.1ft
Nikolski Alaska 1637 PDT Oct 19 0.3ft
Unalaska Alaska 1758 PDT Oct 19 0.3ft
Atka Alaska 1652 PDT Oct 19 0.2ft
Chignik Bay Alaska 1826 PDT Oct 19 2.5ft

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* Magnitude 7.5
* Origin Time 1255 AKDT Oct 19 2020
1355 PDT Oct 19 2020
2055 UTC Oct 19 2020
* Coordinates 54.7 North 159.6 West

>

2020-10-20 03:06 message from NTWC link

Tsunami Observations

The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level

GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
Sand Point (Alaska)	55.33	-160.49	16:11	0.7	-
King Cove (Alaska)	55.06	-162.3	16:36	0.64	-
Nikolski (Alaska)	52.93	-168.85	16:37	0.09	-
Unalaska (Alaska)	53.86	-166.53	17:58	0.09	-
Atka (Alaska)	52.19	-174.21	16:52	0.06	-
Chignik Bay (Alaska)	-	-	18:26	0.76	-

Original Message :

WEAK51 PAAQ 200305
TSUAK1

BULLETIN
Public Tsunami Message Number 11
NWS National Tsunami Warning Center Palmer AK
705 PM AKDT Mon Oct 19 2020

UPDATES
-------
* There are no updates in this message

...THE TSUNAMI ADVISORY REMAINS IN EFFECT...

Tsunami Advisory in Effect for;

* SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
Kennedy Entrance, Alaska (40 miles SW of Homer) to Unimak
Pass, Alaska (80 miles NE of Unalaska)

For other US and Canadian Pacific coasts in North America,
there is no tsunami threat.

OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED
------------------------------------------
* Observed max tsunami height is the highest recorded water level
above the tide level up to the time of this message.

TIME OBSERVED MAX
SITE OF MEASUREMENT TSUNAMI HEIGHT
---------------------------- ---------------- --------------
Sand Point Alaska 1611 PDT Oct 19 2.3ft
King Cove Alaska 1636 PDT Oct 19 2.1ft
Nikolski Alaska 1637 PDT Oct 19 0.3ft
Unalaska Alaska 1758 PDT Oct 19 0.3ft
Atka Alaska 1652 PDT Oct 19 0.2ft
Chignik Bay Alaska 1826 PDT Oct 19 2.5ft

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* Magnitude 7.5
* Origin Time 1255 AKDT Oct 19 2020
1355 PDT Oct 19 2020
2055 UTC Oct 19 2020
* Coordinates 54.7 North 159.6 West

>

2020-10-20 02:05 message from NTWC link

Tsunami Observations

The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level

GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
Sand Point (Alaska)	55.33	-160.49	16:11	0.7	-
King Cove (Alaska)	55.06	-162.3	16:36	0.64	-
Nikolski (Alaska)	52.93	-168.85	16:37	0.09	-
Unalaska (Alaska)	53.86	-166.53	17:58	0.09	-
Atka (Alaska)	52.19	-174.21	16:52	0.06	-
Chignik Bay (Alaska)	-	-	18:26	0.76	-

Original Message :

WEAK51 PAAQ 200204
TSUAK1

BULLETIN
Public Tsunami Message Number 10
NWS National Tsunami Warning Center Palmer AK
604 PM AKDT Mon Oct 19 2020

UPDATES
-------
* Updated observations

...THE TSUNAMI ADVISORY REMAINS IN EFFECT...

Tsunami Advisory in Effect for;

* SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
Kennedy Entrance, Alaska (40 miles SW of Homer) to Unimak
Pass, Alaska (80 miles NE of Unalaska)

For other US and Canadian Pacific coasts in North America,
there is no tsunami threat.

OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED
------------------------------------------
* Observed max tsunami height is the highest recorded water level
above the tide level up to the time of this message.

TIME OBSERVED MAX
SITE OF MEASUREMENT TSUNAMI HEIGHT
---------------------------- ---------------- --------------
Sand Point Alaska 1611 PDT Oct 19 2.3ft
King Cove Alaska 1636 PDT Oct 19 2.1ft
Nikolski Alaska 1637 PDT Oct 19 0.3ft
Unalaska Alaska 1758 PDT Oct 19 0.3ft
Atka Alaska 1652 PDT Oct 19 0.2ft
Chignik Bay Alaska 1826 PDT Oct 19 2.5ft

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* Magnitude 7.5
* Origin Time 1255 AKDT Oct 19 2020
1355 PDT Oct 19 2020
2055 UTC Oct 19 2020
* Coordinates 54.7 North 159.6 West
* Depth 25 miles

>

2020-10-20 01:08 message from NTWC link

Tsunami Observations

The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level

GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
Sand Point (Alaska)	55.33	-160.49	16:11	0.7	-
King Cove (Alaska)	55.06	-162.3	16:36	0.58	-
Nikolski (Alaska)	52.93	-168.85	16:37	0.09	-
Unalaska (Alaska)	53.86	-166.53	17:58	0.09	-
Atka (Alaska)	52.19	-174.21	16:52	0.06	-
Chignik Bay (Alaska)	-	-	16:32	0.7	-

Original Message :

WEAK51 PAAQ 200107
TSUAK1

BULLETIN
Public Tsunami Message Number 9
NWS National Tsunami Warning Center Palmer AK
507 PM AKDT Mon Oct 19 2020

UPDATES
-------
* Updated observations

...THE TSUNAMI ADVISORY REMAINS IN EFFECT...

Tsunami Advisory in Effect for;

* SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
Kennedy Entrance, Alaska (40 miles SW of Homer) to Unimak
Pass, Alaska (80 miles NE of Unalaska)

For other US and Canadian Pacific coasts in North America,
there is no tsunami threat.

OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED
------------------------------------------
* Observed max tsunami height is the highest recorded water level
above the tide level up to the time of this message.

TIME OBSERVED MAX
SITE OF MEASUREMENT TSUNAMI HEIGHT
---------------------------- ---------------- --------------
Sand Point Alaska 1611 PDT Oct 19 2.3ft
King Cove Alaska 1636 PDT Oct 19 1.9ft
Nikolski Alaska 1637 PDT Oct 19 0.3ft
Unalaska Alaska 1758 PDT Oct 19 0.3ft
Atka Alaska 1652 PDT Oct 19 0.2ft
Chignik Bay Alaska 1632 PDT Oct 19 2.3ft

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* Magnitude 7.5
* Origin Time 1255 AKDT Oct 19 2020
1355 PDT Oct 19 2020
2055 UTC Oct 19 2020
* Coordinates 54.7 North 159.6 West
* Depth 25 miles

>

2020-10-20 00:36 message from NTWC link

Tsunami Observations

The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level

GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
Sand Point (Alaska)	55.33	-160.49	16:11	0.7	-
King Cove (Alaska)	55.06	-162.3	16:36	0.55	-
Nikolski (Alaska)	52.93	-168.85	16:37	0.09	-
Unalaska (Alaska)	53.86	-166.53	16:12	0.09	-
Atka (Alaska)	52.19	-174.21	16:52	0.06	-
Chignik Bay (Alaska)	-	-	16:32	0.34	-

Original Message :

WEAK51 PAAQ 200035
TSUAK1

BULLETIN
Public Tsunami Message Number 8
NWS National Tsunami Warning Center Palmer AK
435 PM AKDT Mon Oct 19 2020

UPDATES
-------
* Updated observations

...THE TSUNAMI ADVISORY REMAINS IN EFFECT...

Tsunami Advisory in Effect for;

* SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
Kennedy Entrance, Alaska (40 miles SW of Homer) to Unimak
Pass, Alaska (80 miles NE of Unalaska)

For other US and Canadian Pacific coasts in North America,
there is no tsunami threat.

OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED
------------------------------------------
* Observed max tsunami height is the highest recorded water level
above the tide level up to the time of this message.

TIME OBSERVED MAX
SITE OF MEASUREMENT TSUNAMI HEIGHT
---------------------------- ---------------- --------------
Sand Point Alaska 1611 PDT Oct 19 2.3ft
King Cove Alaska 1636 PDT Oct 19 1.8ft
Nikolski Alaska 1637 PDT Oct 19 0.3ft
Unalaska Alaska 1612 PDT Oct 19 0.3ft
Atka Alaska 1652 PDT Oct 19 0.2ft
Chignik Bay Alaska 1632 PDT Oct 19 1.1ft

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* Magnitude 7.5
* Origin Time 1255 AKDT Oct 19 2020
1355 PDT Oct 19 2020
2055 UTC Oct 19 2020
* Coordinates 54.7 North 159.6 West
* Depth 25 miles

>

2020-10-20 00:19 message from NTWC link

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 7.5 occurred SOUTH of alaska at 2055 UTC on monday OCTOBER 19 2020
Additional TSUNAMI observations have been made

Tsunami Observations

The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level

GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
Chignik Ak	56.3	-158.4	23: 20	0.68	20
Dart 46402	51	-164.1	21: 34	0.04	16
Sand Point Ak	55.3	-160.5	23: 01	0.67	22
King Cove Ak	55.1	-162.3	23: 02	0.68	16
Dutch Hbr Unalaska	53.9	-166.5	22: 59	0.07	26

Original Message :

WEPA42 PHEB 200018
TIBPAC

TSUNAMI INFORMATION STATEMENT NUMBER 3
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
0016 UTC TUE OCT 20 2020

...PTWC TSUNAMI SUPPLEMENT STATEMENT...

**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****

THIS STATEMENT IS ISSUED FOR INFORMATION ONLY IN SUPPORT OF THE
UNESCO/IOC PACIFIC TSUNAMI WARNING AND MITIGATION SYSTEM AND IS
MEANT FOR NATIONAL AUTHORITIES IN EACH COUNTRY OF THAT SYSTEM.

NATIONAL AUTHORITIES WILL DETERMINE THE APPROPRIATE LEVEL OF
ALERT FOR EACH COUNTRY AND MAY ISSUE ADDITIONAL OR MORE REFINED
INFORMATION.

**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****

THE TSUNAMI FORECAST IS UNCHANGED IN THIS MESSAGE.

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* MAGNITUDE 7.5
* ORIGIN TIME 2055 UTC OCT 19 2020
* COORDINATES 54.7 NORTH 159.6 WEST
* DEPTH 41 KM / 25 MILES
* LOCATION SOUTH OF ALASKA

EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.5 OCCURRED
SOUTH OF ALASKA AT 2055 UTC ON MONDAY OCTOBER 19 2020.

* ADDITIONAL TSUNAMI OBSERVATIONS HAVE BEEN MADE.

RECOMMENDED ACTIONS
-------------------

* FOR COASTAL AREAS IMPACTED BY TSUNAMI WAVES... CAREFULLY
MONITOR FOR ANY CONTINUING SEA LEVEL CHANGES. WHEN HAZARDOUS
WAVES HAVE NOT BEEN OBSERVED FOR AT LEAST TWO HOURS THEN IT
CAN BE ASSUMED THE HAZARD HAS PASSED. HOWEVER... CONTINUE TO
EXERCISE CAUTION AROUND THE SEA AS SMALLER TSUNAMI
FLUCTUATIONS MAY CONTINUE FOR MANY MORE HOURS.

* FOR OTHER COASTAL AREAS... IF HAZARDOUS WAVES HAVE NOT BEEN
OBSERVED FOR AT LEAST TWO HOURS AFTER THE ESTIMATED ARRIVAL
TIME THEN IT CAN BE ASSUMED THE HAZARD HAS PASSED.
HOWEVER... SMALL SEA LEVEL FLUCTUATIONS MAY OCCUR AND NORMAL
CAUTION AROUND THE SEA SHOULD BE EXERCISED.

POTENTIAL IMPACTS
-----------------

TSUNAMI OBSERVATIONS
--------------------

* THE FOLLOWING ARE TSUNAMI WAVE OBSERVATIONS FROM COASTAL
AND/OR DEEP-OCEAN SEA LEVEL GAUGES AT THE INDICATED
LOCATIONS. THE MAXIMUM TSUNAMI HEIGHT IS MEASURED WITH
RESPECT TO THE NORMAL TIDE LEVEL.

GAUGE TIME OF MAXIMUM WAVE
COORDINATES MEASURE TSUNAMI PERIOD
GAUGE LOCATION LAT LON (UTC) HEIGHT (MIN)
-------------------------------------------------------------
CHIGNIK AK 56.3N 158.4W 2320 0.68M/ 2.2FT 20
DART 46402 51.0N 164.1W 2134 0.04M/ 0.1FT 16
SAND POINT AK 55.3N 160.5W 2301 0.67M/ 2.2FT 22
KING COVE AK 55.1N 162.3W 2302 0.68M/ 2.2FT 16
DUTCH HBR UNALASKA 53.9N 166.5W 2259 0.07M/ 0.2FT 26

NEXT UPDATE AND ADDITIONAL INFORMATION
--------------------------------------

* THIS WILL BE THE FINAL STATEMENT ISSUED FOR THIS EVENT UNLESS
NEW INFORMATION IS RECEIVED OR THE SITUATION CHANGES.

* AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S.
GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT
EARTHQUAKE.USGS.GOV.

* FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND AT
WWW.TSUNAMI.GOV.

* COASTAL REGIONS OF HAWAII... AMERICAN SAMOA... GUAM... AND
CNMI SHOULD REFER TO PACIFIC TSUNAMI WARNING CENTER MESSAGES
SPECIFICALLY FOR THOSE PLACES THAT CAN BE FOUND AT
WWW.TSUNAMI.GOV.

* COASTAL REGIONS OF CALIFORNIA... OREGON... WASHINGTON...
BRITISH COLUMBIA AND ALASKA SHOULD ONLY REFER TO U.S.
NATIONAL TSUNAMI WARNING CENTER MESSAGES THAT CAN BE FOUND
AT WWW.TSUNAMI.GOV.

$$

>

2020-10-20 00:06 message from NTWC link

Tsunami Observations

The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level

GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
Sand Point (Alaska)	55.33	-160.49	16:11	0.7	-
King Cove (Alaska)	55.06	-162.3	16:36	0.55	-
Nikolski (Alaska)	52.93	-168.85	16:37	0.09	-
Unalaska (Alaska)	53.86	-166.53	16:12	0.09	-
Chignik Bay (Alaska)	-	-	16:32	0.34	-

Original Message :

WEAK51 PAAQ 200005
TSUAK1

BULLETIN
Public Tsunami Message Number 7
NWS National Tsunami Warning Center Palmer AK
405 PM AKDT Mon Oct 19 2020

UPDATES
-------
* Updated observations

...THE TSUNAMI ADVISORY REMAINS IN EFFECT...

Tsunami Advisory in Effect for;

* SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
Kennedy Entrance, Alaska (40 miles SW of Homer) to Unimak
Pass, Alaska (80 miles NE of Unalaska)

For other US and Canadian Pacific coasts in North America,
there is no tsunami threat.

OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED
------------------------------------------
* Observed max tsunami height is the highest recorded water level
above the tide level up to the time of this message.

TIME OBSERVED MAX
SITE OF MEASUREMENT TSUNAMI HEIGHT
---------------------------- ---------------- --------------
Sand Point Alaska 1611 PDT Oct 19 2.3ft
King Cove Alaska 1636 PDT Oct 19 1.8ft
Nikolski Alaska 1637 PDT Oct 19 0.3ft
Unalaska Alaska 1612 PDT Oct 19 0.3ft
Chignik Bay Alaska 1632 PDT Oct 19 1.1ft

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* Magnitude 7.5
* Origin Time 1255 AKDT Oct 19 2020
1355 PDT Oct 19 2020
2055 UTC Oct 19 2020
* Coordinates 54.7 North 159.6 West
* Depth 25 miles
* Location 55 miles SE of Sand Point, Alaska
575 miles SW of Anchorage, Alaska

RECOMMENDED ACTIONS
-------------------
* See message number 5 for recommended actions.

IMPACTS
-------
* See message number 5 for possible impacts.

ADDITIONAL INFORMATION AND NEXT UPDATE
--------------------------------------
* Refer to the internet site tsunami.gov for more information.

* Pacific coastal residents outside California, Oregon,
Washington, British Columbia and Alaska should refer to the
Pacific Tsunami Warning Center messages at tsunami.gov.

* This message will be updated within 30 minutes.

$$

>

2020-10-19 23:07 message from NTWC link

Tsunami Observations

The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level

GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
Sand Point (Alaska)	55.33	-160.49	15:25	0.61	-
King Cove (Alaska)	55.06	-162.3	15:53	0.46	-

Original Message :

WEAK51 PAAQ 192306
TSUAK1

BULLETIN
Public Tsunami Message Number 5
NWS National Tsunami Warning Center Palmer AK
306 PM AKDT Mon Oct 19 2020

UPDATES
-------
* Updated observations
* Revised alert areas

...A TSUNAMI ADVISORY IS NOW IN EFFECT...

Tsunami Advisory in Effect for;

* SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
Kennedy Entrance, Alaska (40 miles SW of Homer) to Unimak
Pass, Alaska (80 miles NE of Unalaska)

For other US and Canadian Pacific coasts in North America,
there is no tsunami threat.

FORECASTS OF TSUNAMI ACTIVITY
-----------------------------
* A tsunami has been generated. The first waves are forecasted to
arrive at the following locations and specified times.

* Forecast tsunami duration is the approximate length of time which
the tsunami may produce dangerous currents and waves.

* Forecast max tsunami height is the highest expected water level
above the tide.

* Forecasts are not provided for sites which have been impacted
more than an hour prior to the time of this message.

FORECAST FORECAST FORECAST
START TSUNAMI MAX TSUNAMI
SITE OF TSUNAMI DURATION HEIGHT
---- ---------- -------- -------------

* Alaska
Cold Bay 1445 AKDT Oct 19 less than 1ft
Kodiak 1450 AKDT Oct 19 less than 1ft

OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED
------------------------------------------
* Observed max tsunami height is the highest recorded water level
above the tide level up to the time of this message.

TIME OBSERVED MAX
SITE OF MEASUREMENT TSUNAMI HEIGHT
---------------------------- ---------------- --------------
Sand Point Alaska 1525 PDT Oct 19 2.0ft
King Cove Alaska 1553 PDT Oct 19 1.5ft

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* Magnitude 7.5
* Origin Time 1255 AKDT Oct 19 2020
1355 PDT Oct 19 2020
2055 UTC Oct 19 2020
* Coordinates 54.7 North 159.6 West
* Depth 25 miles
* Location 55 miles SE of Sand Point, Alaska
575 miles SW of Anchorage, Alaska

RECOMMENDED ACTIONS - UPDATED
-----------------------------
Actions to protect human life and property will
vary within tsunami advisory areas.

If you are in a tsunami advisory area;

* Move out of the water, off the beach, and away from
harbors, marinas, breakwaters, bays and inlets.

* Be alert to and follow instructions from your local
emergency officials because they may have more detailed or
specific information for your location.

* If you feel a strong earthquake or extended ground rolling
take immediate protective actions such as moving inland
and/or uphill preferably by foot.

* Boat operators,
* Where time and conditions permit, move your boat out to
sea to a depth of at least 180 feet.

* If at sea avoid entering shallow water, harbors,
marinas, bays, and inlets to avoid floating and
submerged debris and strong currents.

* Do not go to the shore to observe the tsunami.

* Do not return to the coast until local emergency officials
indicate it is safe to do so.

IMPACTS
-------
Impacts will vary at different locations in the advisory
areas.

If you are in a tsunami advisory area;

* A tsunami with strong waves and currents is possible.

* Waves and currents can drown or injure people who are
in the water.

* Currents at beaches and in harbors, marinas,
bays, and inlets may be especially dangerous.

* Some impacts may continue for many hours to days after
arrival of the first wave.

* The first wave may not be the largest so later waves may
be larger.

* Each wave may last 5 to 45 minutes as a wave encroaches
and recedes.

* Coasts facing all directions are threatened because the
waves can wrap around islands and headlands and into bays.

* Strong shaking or rolling of the ground indicates an
earthquake has occurred and a tsunami may be imminent.

* A rapidly receding or receded shoreline, unusual waves and
sounds, and strong currents are signs of a tsunami.

* The tsunami may appear as water moving rapidly out to sea,
a gentle rising tide like flood with no breaking wave,
as a series of breaking waves, or a frothy wall of water.

ADDITIONAL INFORMATION AND NEXT UPDATE
--------------------------------------
* Refer to the internet site tsunami.gov for more information.

* Pacific coastal residents outside California, Oregon,
Washington, British Columbia and Alaska should refer to the
Pacific Tsunami Warning Center messages at tsunami.gov.

* This message will be updated within 30 minutes.

$$

>

2020-10-19 22:40 message from NTWC link

Tsunami Observations

The following are tsunami wave observations from coastal and/or deep-ocean sea level gauges at the indicated locations the maximum tsunami height is measured with respect to the normal tide level

GAUGE LOCATION	LAT	LON	TIME (UTC)	HEIGHT (m)	PERIOD (min)
Sand Point (Alaska)	55.33	-160.49	15:25	0.61	-

Original Message :

WEAK51 PAAQ 192239
TSUAK1

BULLETIN
Public Tsunami Message Number 4
NWS National Tsunami Warning Center Palmer AK
239 PM AKDT Mon Oct 19 2020

UPDATES
-------
* Updated observations

...THE TSUNAMI WARNING REMAINS IN EFFECT...

Tsunami Warning in Effect for;

* SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
Kennedy Entrance, Alaska (40 miles SW of Homer) to Unimak
Pass, Alaska (80 miles NE of Unalaska)

For other US and Canadian Pacific coasts in North America,
there is no tsunami threat.

FORECASTS OF TSUNAMI ACTIVITY
-----------------------------
* Tsunami activity is forecasted to start at the following
locations at the specified times.

FORECAST
START
SITE OF TSUNAMI
---- ----------

* Alaska
Sand Point 1355 AKDT Oct 19
Cold Bay 1445 AKDT Oct 19
Kodiak 1450 AKDT Oct 19

OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED
------------------------------------------
* Observed max tsunami height is the highest recorded water level
above the tide level up to the time of this message.

TIME OBSERVED MAX
SITE OF MEASUREMENT TSUNAMI HEIGHT
---------------------------- ---------------- --------------
Sand Point Alaska 1525 PDT Oct 19 2.0ft

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* Magnitude 7.5
* Origin Time 1255 AKDT Oct 19 2020
1355 PDT Oct 19 2020
2055 UTC Oct 19 2020
* Coordinates 54.7 North 159.6 West
* Depth 25 miles
* Location 55 miles SE of Sand Point, Alaska
575 miles SW of Anchorage, Alaska

RECOMMENDED ACTIONS
-------------------
Actions to protect human life and property will
vary within tsunami warning areas.

If you are in a tsunami warning area;

* Evacuate inland or to higher ground above and beyond
designated tsunami hazard zones or move to an upper floor
of a multi-story building depending on your situation.

* Move out of the water, off the beach, and away from
harbors, marinas, breakwaters, bays and inlets.

* Be alert to and follow instructions from your local
emergency officials because they may have more detailed or
specific information for your location.

* If you feel a strong earthquake or extended ground rolling
take immediate protective actions such as moving inland
and/or uphill preferably by foot.

* Boat operators,
* Where time and conditions permit, move your boat out to
sea to a depth of at least 180 feet.

* If at sea avoid entering shallow water, harbors,
marinas, bays, and inlets to avoid floating and
submerged debris and strong currents.

* Do not go to the shore to observe the tsunami.

* Do not return to the coast until local emergency officials
indicate it is safe to do so.

IMPACTS
-------
Impacts will vary at different locations in the warning
areas.

If you are in a tsunami warning area;

* A tsunami with damaging waves and powerful currents is
possible.

* Repeated coastal flooding is possible as waves arrive
onshore, move inland, and drain back into the ocean.

* Strong and unusual waves, currents and inland flooding
can drown or injure people and weaken or destroy structures
on land and in water.

* Water filled with floating or submerged debris that can
injure or kill people and weaken or destroy buildings and
bridges is possible.

* Strong and unusual currents and waves in harbors,
marinas, bays, and inlets may be especially
destructive.

* Some impacts may continue for many hours to days after
arrival of the first wave.

* The first wave may not be the largest so later waves may
be larger.

* Each wave may last 5 to 45 minutes as a wave encroaches
and recedes.

* Coasts facing all directions are threatened because the
waves can wrap around islands and headlands and into bays.

* Strong shaking or rolling of the ground indicates an
earthquake has occurred and a tsunami may be imminent.

* A rapidly receding or receded shoreline, unusual waves and
sounds, and strong currents are signs of a tsunami.

* The tsunami may appear as water moving rapidly out to sea,
a gentle rising tide like flood with no breaking wave,
as a series of breaking waves, or a frothy wall of water.

ADDITIONAL INFORMATION AND NEXT UPDATE
--------------------------------------
* Refer to the internet site tsunami.gov for more information.

* Pacific coastal residents outside California, Oregon,
Washington, British Columbia and Alaska should refer to the
Pacific Tsunami Warning Center messages at tsunami.gov.

* This message will be updated within 30 minutes.

$$

>

2020-10-19 22:10 message from NTWC link

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 7.5 occurred SOUTH of alaska at 2055 UTC on monday OCTOBER 19 2020
Note that the magnitude has been updated
Based on all available data the TSUNAMI threat from this earthquake has now passed

Original Message :

WEPA40 PHEB 192209
TSUPAC

TSUNAMI MESSAGE NUMBER 2
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
2205 UTC MON OCT 19 2020

...PTWC FINAL TSUNAMI THREAT MESSAGE...

**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****

THIS MESSAGE IS ISSUED FOR INFORMATION ONLY IN SUPPORT OF THE
UNESCO/IOC PACIFIC TSUNAMI WARNING AND MITIGATION SYSTEM AND IS
MEANT FOR NATIONAL AUTHORITIES IN EACH COUNTRY OF THAT SYSTEM.

NATIONAL AUTHORITIES WILL DETERMINE THE APPROPRIATE LEVEL OF
ALERT FOR EACH COUNTRY AND MAY ISSUE ADDITIONAL OR MORE REFINED
INFORMATION.

**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****

THE TSUNAMI FORECAST IS UPDATED IN THIS MESSAGE.

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* MAGNITUDE 7.5
* ORIGIN TIME 2055 UTC OCT 19 2020
* COORDINATES 54.7 NORTH 159.6 WEST
* DEPTH 41 KM / 25 MILES
* LOCATION SOUTH OF ALASKA

EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.5 OCCURRED
SOUTH OF ALASKA AT 2055 UTC ON MONDAY OCTOBER 19 2020. NOTE
THAT THE MAGNITUDE HAS BEEN UPDATED.

* BASED ON ALL AVAILABLE DATA... THE TSUNAMI THREAT FROM THIS
EARTHQUAKE HAS NOW PASSED.

TSUNAMI THREAT FORECAST...UPDATED
---------------------------------

* THERE IS NO LONGER A TSUNAMI THREAT FROM THIS EARTHQUAKE,
EXCEPT FOR THE IMMEDIATE EPICENTRAL AREA.

RECOMMENDED ACTIONS
-------------------

* REMAIN OBSERVANT AND EXERCISE NORMAL CAUTION NEAR THE SEA.
OTHERWISE... NO ACTION IS REQUIRED.

POTENTIAL IMPACTS
-----------------

* MINOR SEA LEVEL FLUCTUATIONS MAY OCCUR IN SOME COASTAL AREAS
NEAR THE EARTHQUAKE OVER THE NEXT FEW HOURS.

NEXT UPDATE AND ADDITIONAL INFORMATION
--------------------------------------

* THIS WILL BE THE FINAL STATEMENT ISSUED FOR THIS EVENT UNLESS
NEW INFORMATION IS RECEIVED OR THE SITUATION CHANGES.

* AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S.
GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT
EARTHQUAKE.USGS.GOV.

* FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND AT
WWW.TSUNAMI.GOV.

* COASTAL REGIONS OF HAWAII... AMERICAN SAMOA... GUAM... AND
CNMI SHOULD REFER TO PACIFIC TSUNAMI WARNING CENTER MESSAGES
SPECIFICALLY FOR THOSE PLACES THAT CAN BE FOUND AT
WWW.TSUNAMI.GOV.

* COASTAL REGIONS OF CALIFORNIA... OREGON... WASHINGTON...
BRITISH COLUMBIA AND ALASKA SHOULD ONLY REFER TO U.S.
NATIONAL TSUNAMI WARNING CENTER MESSAGES THAT CAN BE FOUND
AT WWW.TSUNAMI.GOV.

$$

>

2020-10-19 22:07 message from NTWC link

Original Message :

WEAK51 PAAQ 192206
TSUAK1

BULLETIN
Public Tsunami Message Number 3
NWS National Tsunami Warning Center Palmer AK
206 PM AKDT Mon Oct 19 2020

UPDATES
-------
* There are no updates in this message

...THE TSUNAMI WARNING REMAINS IN EFFECT...

Tsunami Warning in Effect for;

* SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
Kennedy Entrance, Alaska (40 miles SW of Homer) to Unimak
Pass, Alaska (80 miles NE of Unalaska)

For other US and Canadian Pacific coasts in North America,
the level of tsunami danger is being evaluated. Further
information will be provided in supplementary messages.

FORECASTS OF TSUNAMI ACTIVITY
-----------------------------
* Tsunami activity is forecasted to start at the following
locations at the specified times.

FORECAST
START
SITE OF TSUNAMI
---- ----------

* Alaska
Sand Point 1355 AKDT Oct 19
Cold Bay 1445 AKDT Oct 19
Kodiak 1450 AKDT Oct 19

OBSERVATIONS OF TSUNAMI ACTIVITY
--------------------------------
* No tsunami observations are available to report.

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* Magnitude 7.5
* Origin Time 1255 AKDT Oct 19 2020
1355 PDT Oct 19 2020
2055 UTC Oct 19 2020
* Coordinates 54.7 North 159.6 West
* Depth 25 miles
* Location 55 miles SE of Sand Point, Alaska
575 miles SW of Anchorage, Alaska

RECOMMENDED ACTIONS
-------------------
Actions to protect human life and property will
vary within tsunami warning areas.

If you are in a tsunami warning area;

* Evacuate inland or to higher ground above and beyond
designated tsunami hazard zones or move to an upper floor
of a multi-story building depending on your situation.

* Move out of the water, off the beach, and away from
harbors, marinas, breakwaters, bays and inlets.

* Be alert to and follow instructions from your local
emergency officials because they may have more detailed or
specific information for your location.

* If you feel a strong earthquake or extended ground rolling
take immediate protective actions such as moving inland
and/or uphill preferably by foot.

* Boat operators,
* Where time and conditions permit, move your boat out to
sea to a depth of at least 180 feet.

* If at sea avoid entering shallow water, harbors,
marinas, bays, and inlets to avoid floating and
submerged debris and strong currents.

* Do not go to the shore to observe the tsunami.

* Do not return to the coast until local emergency officials
indicate it is safe to do so.

IMPACTS
-------
Impacts will vary at different locations in the warning
areas.

If you are in a tsunami warning area;

* A tsunami with damaging waves and powerful currents is
possible.

* Repeated coastal flooding is possible as waves arrive
onshore, move inland, and drain back into the ocean.

* Strong and unusual waves, currents and inland flooding
can drown or injure people and weaken or destroy structures
on land and in water.

* Water filled with floating or submerged debris that can
injure or kill people and weaken or destroy buildings and
bridges is possible.

* Strong and unusual currents and waves in harbors,
marinas, bays, and inlets may be especially
destructive.

* Some impacts may continue for many hours to days after
arrival of the first wave.

* The first wave may not be the largest so later waves may
be larger.

* Each wave may last 5 to 45 minutes as a wave encroaches
and recedes.

* Coasts facing all directions are threatened because the
waves can wrap around islands and headlands and into bays.

* Strong shaking or rolling of the ground indicates an
earthquake has occurred and a tsunami may be imminent.

* A rapidly receding or receded shoreline, unusual waves and
sounds, and strong currents are signs of a tsunami.

* The tsunami may appear as water moving rapidly out to sea,
a gentle rising tide like flood with no breaking wave,
as a series of breaking waves, or a frothy wall of water.

ADDITIONAL INFORMATION AND NEXT UPDATE
--------------------------------------
* Refer to the internet site tsunami.gov for more information.

* Pacific coastal residents outside California, Oregon,
Washington, British Columbia and Alaska should refer to the
Pacific Tsunami Warning Center messages at tsunami.gov.

* This message will be updated within 30 minutes.

$$

>

2020-10-19 21:32 message from NTWC link

Original Message :

WEAK51 PAAQ 192131
TSUAK1

BULLETIN
Public Tsunami Message Number 2
NWS National Tsunami Warning Center Palmer AK
131 PM AKDT Mon Oct 19 2020

UPDATES
-------
* Revised magnitude

...THE TSUNAMI WARNING REMAINS IN EFFECT...

Tsunami Warning in Effect for;

* SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
Kennedy Entrance, Alaska (40 miles SW of Homer) to Unimak
Pass, Alaska (80 miles NE of Unalaska)

For other US and Canadian Pacific coasts in North America,
the level of tsunami danger is being evaluated. Further
information will be provided in supplementary messages.

PRELIMINARY EARTHQUAKE PARAMETERS - UPDATED
-------------------------------------------

* The following parameters are based on a rapid preliminary
assessment of the earthquake and changes may occur.

* Magnitude 7.5
* Origin Time 1255 AKDT Oct 19 2020
1355 PDT Oct 19 2020
2055 UTC Oct 19 2020
* Coordinates 54.7 North 159.6 West
* Depth 25 miles
* Location 55 miles SE of Sand Point, Alaska
575 miles SW of Anchorage, Alaska

FORECASTS OF TSUNAMI ACTIVITY
-----------------------------
* Tsunami activity is forecasted to start at the following
locations at the specified times.

FORECAST
START
SITE OF TSUNAMI
---- ----------

* Alaska
Sand Point 1355 AKDT Oct 19
Cold Bay 1445 AKDT Oct 19
Kodiak 1450 AKDT Oct 19

OBSERVATIONS OF TSUNAMI ACTIVITY
--------------------------------
* No tsunami observations are available to report.

RECOMMENDED ACTIONS
-------------------
Actions to protect human life and property will
vary within tsunami warning areas.

If you are in a tsunami warning area;

* Evacuate inland or to higher ground above and beyond
designated tsunami hazard zones or move to an upper floor
of a multi-story building depending on your situation.

* Move out of the water, off the beach, and away from
harbors, marinas, breakwaters, bays and inlets.

* Be alert to and follow instructions from your local
emergency officials because they may have more detailed or
specific information for your location.

* If you feel a strong earthquake or extended ground rolling
take immediate protective actions such as moving inland
and/or uphill preferably by foot.

* Boat operators,
* Where time and conditions permit, move your boat out to
sea to a depth of at least 180 feet.

* If at sea avoid entering shallow water, harbors,
marinas, bays, and inlets to avoid floating and
submerged debris and strong currents.

* Do not go to the shore to observe the tsunami.

* Do not return to the coast until local emergency officials
indicate it is safe to do so.

IMPACTS
-------
Impacts will vary at different locations in the warning
areas.

If you are in a tsunami warning area;

* A tsunami with damaging waves and powerful currents is
possible.

* Repeated coastal flooding is possible as waves arrive
onshore, move inland, and drain back into the ocean.

* Strong and unusual waves, currents and inland flooding
can drown or injure people and weaken or destroy structures
on land and in water.

* Water filled with floating or submerged debris that can
injure or kill people and weaken or destroy buildings and
bridges is possible.

* Strong and unusual currents and waves in harbors,
marinas, bays, and inlets may be especially
destructive.

* Some impacts may continue for many hours to days after
arrival of the first wave.

* The first wave may not be the largest so later waves may
be larger.

* Each wave may last 5 to 45 minutes as a wave encroaches
and recedes.

* Coasts facing all directions are threatened because the
waves can wrap around islands and headlands and into bays.

* Strong shaking or rolling of the ground indicates an
earthquake has occurred and a tsunami may be imminent.

* A rapidly receding or receded shoreline, unusual waves and
sounds, and strong currents are signs of a tsunami.

* The tsunami may appear as water moving rapidly out to sea,
a gentle rising tide like flood with no breaking wave,
as a series of breaking waves, or a frothy wall of water.

ADDITIONAL INFORMATION AND NEXT UPDATE
--------------------------------------
* Refer to the internet site tsunami.gov for more information.

* Pacific coastal residents outside California, Oregon,
Washington, British Columbia and Alaska should refer to the
Pacific Tsunami Warning Center messages at tsunami.gov.

* This message will be updated within 30 minutes.

$$

>

2020-10-19 21:05 message from NTWC link

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 7.4 occurred SOUTH of alaska at 2055 UTC on monday OCTOBER 19 2020
Based on the preliminary earthquake parameters hazardous TSUNAMI waves are possible for coasts located within 300 km of the earthquake epicenter

Threat Forecast

Hazardous TSUNAMI waves from this earthquake are possible within 300 km of the epicenter along the coasts of no areas covered by this message appear to be immediately threatened. however... the situation is still under investigation. this threat evaluation will be updated as soon as further information becomes available.

Original Message :

WEPA40 PHEB 192104
TSUPAC

TSUNAMI MESSAGE NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
2104 UTC MON OCT 19 2020

...PTWC TSUNAMI THREAT MESSAGE...

**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****

THIS MESSAGE IS ISSUED FOR INFORMATION ONLY IN SUPPORT OF THE
UNESCO/IOC PACIFIC TSUNAMI WARNING AND MITIGATION SYSTEM AND IS
MEANT FOR NATIONAL AUTHORITIES IN EACH COUNTRY OF THAT SYSTEM.

NATIONAL AUTHORITIES WILL DETERMINE THE APPROPRIATE LEVEL OF
ALERT FOR EACH COUNTRY AND MAY ISSUE ADDITIONAL OR MORE REFINED
INFORMATION.

**** NOTICE **** NOTICE **** NOTICE **** NOTICE **** NOTICE *****

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* MAGNITUDE 7.4
* ORIGIN TIME 2055 UTC OCT 19 2020
* COORDINATES 54.7 NORTH 159.6 WEST
* DEPTH 41 KM / 25 MILES
* LOCATION SOUTH OF ALASKA

EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.4 OCCURRED
SOUTH OF ALASKA AT 2055 UTC ON MONDAY OCTOBER 19 2020.

* BASED ON THE PRELIMINARY EARTHQUAKE PARAMETERS... HAZARDOUS
TSUNAMI WAVES ARE POSSIBLE FOR COASTS LOCATED WITHIN 300 KM
OF THE EARTHQUAKE EPICENTER.

TSUNAMI THREAT FORECAST
-----------------------

* HAZARDOUS TSUNAMI WAVES FROM THIS EARTHQUAKE ARE POSSIBLE
WITHIN 300 KM OF THE EPICENTER ALONG THE COASTS OF

NO AREAS COVERED BY THIS MESSAGE APPEAR TO BE IMMEDIATELY
THREATENED. HOWEVER... THE SITUATION IS STILL UNDER
INVESTIGATION. THIS THREAT EVALUATION WILL BE UPDATED AS
SOON AS FURTHER INFORMATION BECOMES AVAILABLE.

RECOMMENDED ACTIONS
-------------------

* GOVERNMENT AGENCIES RESPONSIBLE FOR THREATENED COASTAL AREAS
SHOULD TAKE ACTION TO INFORM AND INSTRUCT ANY COASTAL
POPULATIONS AT RISK IN ACCORDANCE WITH THEIR OWN
EVALUATION... PROCEDURES AND THE LEVEL OF THREAT.

* PERSONS LOCATED IN THREATENED COASTAL AREAS SHOULD STAY ALERT
FOR INFORMATION AND FOLLOW INSTRUCTIONS FROM NATIONAL AND
LOCAL AUTHORITIES.

POTENTIAL IMPACTS
-----------------

* A TSUNAMI IS A SERIES OF WAVES. THE TIME BETWEEN WAVE CRESTS
CAN VARY FROM 5 MINUTES TO AN HOUR. THE HAZARD MAY PERSIST
FOR MANY HOURS OR LONGER AFTER THE INITIAL WAVE.

* IMPACTS CAN VARY SIGNIFICANTLY FROM ONE SECTION OF COAST TO
THE NEXT DUE TO LOCAL BATHYMETRY AND THE SHAPE AND ELEVATION
OF THE SHORELINE.

* IMPACTS CAN ALSO VARY DEPENDING UPON THE STATE OF THE TIDE AT
THE TIME OF THE MAXIMUM TSUNAMI WAVES.

* PERSONS CAUGHT IN THE WATER OF A TSUNAMI MAY DROWN... BE
CRUSHED BY DEBRIS IN THE WATER... OR BE SWEPT OUT TO SEA.

NEXT UPDATE AND ADDITIONAL INFORMATION
--------------------------------------

* THE NEXT MESSAGE WILL BE ISSUED IN ONE HOUR... OR SOONER IF
THE SITUATION WARRANTS.

* AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S.
GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT
EARTHQUAKE.USGS.GOV.

* FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND AT
WWW.TSUNAMI.GOV.

* COASTAL REGIONS OF HAWAII... AMERICAN SAMOA... GUAM... AND
CNMI SHOULD REFER TO PACIFIC TSUNAMI WARNING CENTER MESSAGES
SPECIFICALLY FOR THOSE PLACES THAT CAN BE FOUND AT
WWW.TSUNAMI.GOV.

* COASTAL REGIONS OF CALIFORNIA... OREGON... WASHINGTON...
BRITISH COLUMBIA AND ALASKA SHOULD ONLY REFER TO U.S.
NATIONAL TSUNAMI WARNING CENTER MESSAGES THAT CAN BE FOUND
AT WWW.TSUNAMI.GOV.

$$

>

2020-10-19 21:04 link

Original Message :

WEIO24 AMMC 192103
---------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 1
IOTWMS TSUNAMI SERVICE PROVIDER AUSTRALIA [JATWC]
ISSUED AT 2103 UTC MONDAY 19 OCTOBER 2020
---------------------------------------------------------------------
TO: INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES [NTWCs]
FROM: IOTWMS-TSP AUSTRALIA

NOTIFICATION:
IOTWMS-TSP AUSTRALIA HAS JUST ISSUED TSUNAMI BULLETIN NUMBER 1
FOR THE INDIAN OCEAN, BASED ON THE FOLLOWING EARTHQUAKE EVENT:

MAGNITUDE: 7.5 MWP
DEPTH: 30KM
DATE: 19 OCT 2020
ORIGIN TIME: 2054 UTC
LATITUDE: 54.76N
LONGITUDE: 159.73W
LOCATION: SOUTH OF ALASKA

TO VIEW THE BULLETIN GO TO THE IOTWMS-TSP AUSTRALIA WEBSITE AT:

http://reg.bom.gov.au/tsunami/rtsp/index.shtml

NOTE: THIS IS A RESTRICTED-ACCESS WEBSITE CONTAINING TECHNICAL DATA
FOR NATIONAL TSUNAMI WARNING CENTRES ONLY. IT IS NOT FOR GENERAL
PUBLIC ACCESS.

GENERAL PUBLIC INFORMATION FOR THIS EVENT IS AVAILABLE FROM:

JOINT AUSTRALIAN TSUNAMI WARNING CENTRE [JATWC]
BUREAU OF METEOROLOGY
MELBOURNE, AUSTRALIA
http://www.bom.gov.au/tsunami

END OF NOTIFICATION MESSAGE
---------------------------------------------------------------------

>

2020-10-19 21:01 message from NTWC link

Original Message :

WEAK51 PAAQ 192100
TSUAK1

BULLETIN
Public Tsunami Message Number 1
NWS National Tsunami Warning Center Palmer AK
100 PM AKDT Mon Oct 19 2020

...A TSUNAMI WARNING IS NOW IN EFFECT...

Tsunami Warning in Effect for;

* SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
Kennedy Entrance, Alaska (40 miles SW of Homer) to Unimak
Pass, Alaska (80 miles NE of Unalaska)

For other US and Canadian Pacific coasts in North America,
the level of tsunami danger is being evaluated. Further
information will be provided in supplementary messages.

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

* The following parameters are based on a rapid preliminary
assessment of the earthquake and changes may occur.

* Magnitude 7.4
* Origin Time 1255 AKDT Oct 19 2020
1355 PDT Oct 19 2020
2055 UTC Oct 19 2020
* Coordinates 54.7 North 159.6 West
* Depth 25 miles
* Location 55 miles SE of Sand Point, Alaska
575 miles SW of Anchorage, Alaska

FORECASTS OF TSUNAMI ACTIVITY
-----------------------------
* Tsunami activity is forecasted to start at the following
locations at the specified times.

FORECAST
START
SITE OF TSUNAMI
---- ----------

* Alaska
Sand Point 1355 AKDT Oct 19
Cold Bay 1445 AKDT Oct 19
Kodiak 1450 AKDT Oct 19

OBSERVATIONS OF TSUNAMI ACTIVITY
--------------------------------
* No tsunami observations are available to report.

RECOMMENDED ACTIONS
-------------------
Actions to protect human life and property will
vary within tsunami warning areas.

If you are in a tsunami warning area;

* Evacuate inland or to higher ground above and beyond
designated tsunami hazard zones or move to an upper floor
of a multi-story building depending on your situation.

* Move out of the water, off the beach, and away from
harbors, marinas, breakwaters, bays and inlets.

* Be alert to and follow instructions from your local
emergency officials because they may have more detailed or
specific information for your location.

* If you feel a strong earthquake or extended ground rolling
take immediate protective actions such as moving inland
and/or uphill preferably by foot.

* Boat operators,
* Where time and conditions permit, move your boat out to
sea to a depth of at least 180 feet.

* If at sea avoid entering shallow water, harbors,
marinas, bays, and inlets to avoid floating and
submerged debris and strong currents.

* Do not go to the shore to observe the tsunami.

* Do not return to the coast until local emergency officials
indicate it is safe to do so.

IMPACTS
-------
Impacts will vary at different locations in the warning
areas.

If you are in a tsunami warning area;

* A tsunami with damaging waves and powerful currents is
possible.

* Repeated coastal flooding is possible as waves arrive
onshore, move inland, and drain back into the ocean.

* Strong and unusual waves, currents and inland flooding
can drown or injure people and weaken or destroy structures
on land and in water.

* Water filled with floating or submerged debris that can
injure or kill people and weaken or destroy buildings and
bridges is possible.

* Strong and unusual currents and waves in harbors,
marinas, bays, and inlets may be especially
destructive.

* Some impacts may continue for many hours to days after
arrival of the first wave.

* The first wave may not be the largest so later waves may
be larger.

* Each wave may last 5 to 45 minutes as a wave encroaches
and recedes.

* Coasts facing all directions are threatened because the
waves can wrap around islands and headlands and into bays.

* Strong shaking or rolling of the ground indicates an
earthquake has occurred and a tsunami may be imminent.

* A rapidly receding or receded shoreline, unusual waves and
sounds, and strong currents are signs of a tsunami.

* The tsunami may appear as water moving rapidly out to sea,
a gentle rising tide like flood with no breaking wave,
as a series of breaking waves, or a frothy wall of water.

ADDITIONAL INFORMATION AND NEXT UPDATE
--------------------------------------
* Refer to the internet site tsunami.gov for more information.

* Pacific coastal residents outside California, Oregon,
Washington, British Columbia and Alaska should refer to the
Pacific Tsunami Warning Center messages at tsunami.gov.

* This message will be updated within 30 minutes.

$$

>

2020-10-19 20:54 link

Original Message :

WEIO20 DEMS 192104

---------------------------------------------------------------------

TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 1

IOTWMS TSUNAMI SERVICE PROVIDER INDIA (ITEWC)

ISSUED AT 2104 UTCMONDAY 19 OCTOBER 2020

---------------------------------------------------------------------

TO: INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES (NTWC)

FROM: IOTWMS-TSP INDIA

NOTIFICATION:

IOTWMS-TSP INDIA HAS JUST ISSUED TSUNAMI BULLETIN NUMBER 1

FOR THE INDIAN OCEAN, BASED ON THE FOLLOWING EARTHQUAKE EVENT:

Magnitude : 7.5

Depth : 10.0

Date : 19 Oct 2020

Origin Time : 2054 UTC

Latitude : 54.79 N

Longitude : 159.70 W

Location : South of Alaska

TO VIEW THE BULLETIN GO TO THE IOTWMS-TSP INDIA WEBSITE AT:

https://tsunami.incois.gov.in/TEWS/displaybulletinslatest.jsp?type=TSP&eventId=incois2020upch&aos=

exchange&currBullNo=1&latestBullNo=1

NOTE: THIS IS A RESTRICTED-ACCESS WEBSITE CONTAINING TECHNICAL DATA

FOR INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES ONLY. IT IS NOT

FOR GENERAL PUBLIC ACCESS.

GENERAL PUBLIC INFORMATION FOR THIS EVENT IS AVAILABLE FROM:

INDIAN TSUNAMI EARLY WARNING CENTRE (ITEWC)

INDIAN NATIONAL CENTRE FOR OCEAN INFORMATION SERVICES (INCOIS)

ADDRESS:OCEAN VALLEY, PRAGATHI NAGAR (BO), NIZAMPET (SO),

HYDERABAD - 500 090, INDIA

PHONE: 91-40-23895011

FAX: 91-40-23895012

EMAIL: tsunami@incois.gov.in

WEB: https://tsunami.incois.gov.in/TEWS/TSP

END OF NOTIFICATION MESSAGE

---------------------------------------------------------------------

2020-10-19 10:55 message from NTWC link

Key information extracted from original GTS message :

Evaluation

Original Message :

WEHW40 PHEB 200246

TSUHWX

HIZ001>003-005>009-012>014-016>021-023>026-200446-

/O.NEW.PHEB.TS.Y.0002.201020T0238Z-000000T0000Z/

TSUNAMI MESSAGE NUMBER 2

NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI

446 PM HST MON OCT 19 2020

TO - EMERGENCY MANAGEMENT IN THE STATE OF HAWAII

SUBJECT - TSUNAMI ADVISORY

A TSUNAMI ADVISORY IS ISSUED FOR THE STATE OF HAWAII EFFECTIVE

AT 0438 PM HST.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 1055 AM HST 19 OCT 2020

COORDINATES - 54.7 NORTH 159.6 WEST

LOCATION - SOUTH OF ALASKA

MAGNITUDE - 7.5 MOMENT

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION LAT LON TIME AMPL PER

------------------- ----- ------ ----- --------------- -----

KAWAIHAE HAWAII 20.0N 155.8W 0205Z 0.05M / 0.2FT 12MIN

MOKUOLOE OAHU 21.4N 157.8W 0214Z 0.02M / 0.1FT 08MIN

HILO HI 19.7N 155.1W 0211Z 0.30M / 1.0FT 16MIN

HALEIWA HI 21.6N 158.1W 0147Z 0.19M / 0.6FT 10MIN

KAHULUI MAUI 20.9N 156.5W 0200Z 0.38M / 1.2FT 20MIN

LAT - LATITUDE (N-NORTH, S-SOUTH)

LON - LONGITUDE (E-EAST, W-WEST)

TIME - TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME)

AMPL - TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL.

IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT.

VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT).

PER - PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT.

NOTE - DART MEASUREMENTS ARE FROM THE DEEP OCEAN AND THEY

ARE GENERALLY MUCH SMALLER THAN WOULD BE COASTAL

MEASUREMENTS AT SIMILAR LOCATIONS.

EVALUATION

BASED ON ALL AVAILABLE DATA A MAJOR TSUNAMI IS NOT EXPECTED TO

STRIKE THE STATE OF HAWAII. HOWEVER...SEA LEVEL CHANGES HAVE BEEN

RECORDED AT HILO AND KAHULUI JUST ABOVE ADVISORY LEVEL THAT COULD

BE A HAZARD TO SWIMMERS AND BOATERS AS WELL AS TO PERSONS NEAR

THE SHORE AT BEACHES AND IN HARBORS AND MARINAS. THE THREAT MAY

CONTINUE FOR SEVERAL HOURS AFTER THE INITIAL WAVE ARRIVAL.

THE ESTIMATED TIME OF ARRIVAL OF THE INITIAL WAVE IS

0327 PM HST MON 19 OCT 2020

FURTHER MESSAGES WILL BE ISSUED HOURLY OR SOONER AS CONDITIONS

WARRANT UNTIL THE THREAT TO HAWAII HAS PASSED.

$$

2020-10-19 10:55 message from NTWC link

Key information extracted from original GTS message :

Evaluation

Original Message :

WEHW40 PHEB 200355

TSUHWX

HIZ001>003-005>009-012>014-016>021-023>026-200555-

/O.CON.PHEB.TS.Y.0002.000000T0000Z-000000T0000Z/

TSUNAMI MESSAGE NUMBER 3

NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI

555 PM HST MON OCT 19 2020

TO - EMERGENCY MANAGEMENT IN THE STATE OF HAWAII

SUBJECT - TSUNAMI ADVISORY SUPPLEMENT

A TSUNAMI ADVISORY CONTINUES IN EFFECT FOR THE STATE OF HAWAII.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 1055 AM HST 19 OCT 2020

COORDINATES - 54.7 NORTH 159.6 WEST

LOCATION - SOUTH OF ALASKA

MAGNITUDE - 7.5 MOMENT

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION LAT LON TIME AMPL PER

------------------- ----- ------ ----- --------------- -----

HANALEI HI 22.2N 159.5W 0304Z 0.26M / 0.8FT 18MIN

NAWILIWILI HI 22.0N 159.4W 0142Z 0.09M / 0.3FT 12MIN

KAWAIHAE HAWAII 20.0N 155.8W 0205Z 0.05M / 0.2FT 12MIN

MOKUOLOE OAHU 21.4N 157.8W 0214Z 0.02M / 0.1FT 08MIN

HILO HI 19.7N 155.1W 0211Z 0.30M / 1.0FT 16MIN

HALEIWA HI 21.6N 158.1W 0147Z 0.19M / 0.6FT 10MIN

KAHULUI MAUI 20.9N 156.5W 0200Z 0.38M / 1.2FT 20MIN

LAT - LATITUDE (N-NORTH, S-SOUTH)

LON - LONGITUDE (E-EAST, W-WEST)

TIME - TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME)

AMPL - TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL.

IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT.

VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT).

PER - PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT.

NOTE - DART MEASUREMENTS ARE FROM THE DEEP OCEAN AND THEY

ARE GENERALLY MUCH SMALLER THAN WOULD BE COASTAL

MEASUREMENTS AT SIMILAR LOCATIONS.

EVALUATION

TSUNAMI WAVES HAVE BEEN RECORDED AT HILO AND KAHULUI JUST ABOVE

ADVISORY LEVEL THAT COULD BE A HAZARD TO SWIMMERS AND BOATERS AS

WELL AS TO PERSONS NEAR THE SHORE AT BEACHES AND IN HARBORS AND

MARINAS. THIS HAZARD COULD CONTINUE FOR SEVERAL HOURS. THE

SITUATION IS BEING MONITORED CLOSELY AND THE ADVISORY WILL END

WHEN THE HAZARD HAS PASSED.

FURTHER MESSAGES WILL BE ISSUED HOURLY OR SOONER AS CONDITIONS

WARRANT UNTIL THE THREAT TO HAWAII HAS PASSED.

$$

2020-10-19 10:55 message from NTWC link

Key information extracted from original GTS message :

Evaluation

Original Message :

WEHW40 PHEB 200501

TSUHWX

HIZ001>003-005>009-012>014-016>021-023>026-200701-

/O.CAN.PHEB.TS.Y.0002.000000T0000Z-000000T0000Z/

TSUNAMI MESSAGE NUMBER 4

NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI

701 PM HST MON OCT 19 2020

TO - EMERGENCY MANAGEMENT IN THE STATE OF HAWAII

SUBJECT - FINAL TSUNAMI ADVISORY

THE TSUNAMI ADVISORY IS ENDED FOR THE STATE OF HAWAII EFFECTIVE

AT 0658 PM HST.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 1055 AM HST 19 OCT 2020

COORDINATES - 54.7 NORTH 159.6 WEST

LOCATION - SOUTH OF ALASKA

MAGNITUDE - 7.5 MOMENT

MEASUREMENTS OR REPORTS OF TSUNAMI WAVE ACTIVITY

GAUGE LOCATION LAT LON TIME AMPL PER

------------------- ----- ------ ----- --------------- -----

KAHULUI MAUI 20.9N 156.5W 0346Z 0.13M / 0.4FT 20MIN

HILO HI 19.7N 155.1W 0211Z 0.28M / 0.9FT 16MIN

HANALEI HI 22.2N 159.5W 0304Z 0.26M / 0.8FT 18MIN

NAWILIWILI HI 22.0N 159.4W 0142Z 0.09M / 0.3FT 12MIN

KAWAIHAE HAWAII 20.0N 155.8W 0205Z 0.05M / 0.2FT 12MIN

MOKUOLOE OAHU 21.4N 157.8W 0214Z 0.02M / 0.1FT 08MIN

HALEIWA HI 21.6N 158.1W 0147Z 0.19M / 0.6FT 10MIN

LAT - LATITUDE (N-NORTH, S-SOUTH)

LON - LONGITUDE (E-EAST, W-WEST)

TIME - TIME OF THE MEASUREMENT (Z IS UTC IS GREENWICH TIME)

AMPL - TSUNAMI AMPLITUDE MEASURED RELATIVE TO NORMAL SEA LEVEL.

IT IS ...NOT... CREST-TO-TROUGH WAVE HEIGHT.

VALUES ARE GIVEN IN BOTH METERS(M) AND FEET(FT).

PER - PERIOD OF TIME IN MINUTES(MIN) FROM ONE WAVE TO THE NEXT.

NOTE - DART MEASUREMENTS ARE FROM THE DEEP OCEAN AND THEY

ARE GENERALLY MUCH SMALLER THAN WOULD BE COASTAL

MEASUREMENTS AT SIMILAR LOCATIONS.

EVALUATION

TSUNAMI WAVE HEIGHTS ACROSS THE STATE OF HAWAII ARE NOW BELOW

ADVISORY LEVELS AND ARE CONTINUING TO DIMINISH. MEASUREMENTS

RECORDED FOR KAHULUI AND HILO ARE NOW BELOW ADVISORY LEVEL.

BASED ON ALL AVAILABLE DATA THE PACIFIC TSUNAMI WARNING CENTER

IS NOW CANCELLING THE TSUNAMI ADVISORY. SMALL SEA LEVEL CHANGES

AND STRONG OR UNUSUAL CURRENTS MAY PERSIST FOR SEVERAL ADDITIONAL

HOURS IN SOME COASTAL AREAS AND APPROPRIATE CAUTION SHOULD BE

EXERCISED BY BOATERS AND SWIMMERS.

THIS WILL BE THE FINAL MESSAGE ISSUED FOR THIS EVENT UNLESS

ADDITIONAL DATA ARE RECEIVED.

$$

2020-10-19 10:55 message from NTWC link

Key information extracted from original GTS message :

Evaluation

Original Message :

WEHW42 PHEB 192106

TIBHWX

HIZ001>003-005>009-012>014-016>021-023>026-192306-

TSUNAMI INFORMATION STATEMENT NUMBER 1

NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI

1106 AM HST MON OCT 19 2020

TO - EMERGENCY MANAGEMENT IN THE STATE OF HAWAII

SUBJECT - TSUNAMI INFORMATION STATEMENT

THIS STATEMENT IS FOR INFORMATION ONLY. NO ACTION REQUIRED.

AN EARTHQUAKE HAS OCCURRED WITH THESE PRELIMINARY PARAMETERS

ORIGIN TIME - 1055 AM HST 19 OCT 2020

COORDINATES - 54.7 NORTH 159.6 WEST

LOCATION - SOUTH OF ALASKA

MAGNITUDE - 7.4 MOMENT

EVALUATION

A TSUNAMI THREAT EXISTS FOR PARTS OF THE PACIFIC LOCATED CLOSER

TO THE EARTHQUAKE. HOWEVER... BASED ON ALL AVAILABLE DATA...

THERE IS NO TSUNAMI THREAT TO HAWAII. REPEAT. BASED ON ALL

AVAILABLE DATA... THERE IS NO TSUNAMI THREAT TO HAWAII.

THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS

ADDITIONAL DATA ARE RECEIVED.

$$

2020-10-19 09:55 message from NTWC link

Key information extracted from original GTS message :

Evaluation

Original Message :

WEZS42 PHEB 192106

TIBPPG

TSUNAMI INFORMATION STATEMENT NUMBER 1

NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI

1006 AM SST MON OCT 19 2020

...NO TSUNAMI THREAT FROM A DISTANT EARTHQUAKE...

AUDIENCE

--------

EMERGENCY MANAGERS... MEDIA... GENERAL PUBLIC

EVALUATION

----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.4 OCCURRED

SOUTH OF ALASKA AT 955 AM SST ON MONDAY OCTOBER 19 2020.

* BASED ON ALL AVAILABLE DATA... THERE IS NO TSUNAMI THREAT TO

AMERICAN SAMOA FROM THIS EARTHQUAKE.

RECOMMENDED ACTIONS

-------------------

* NO ACTION IS REQUIRED.

POTENTIAL IMPACTS

-----------------

* NO TSUNAMI IMPACTS ARE EXPECTED.

PRELIMINARY EARTHQUAKE PARAMETERS

---------------------------------

* MAGNITUDE 7.4

* ORIGIN TIME 955 AM SST OCT 19 2020

* COORDINATES 54.7 NORTH 159.6 WEST

* DEPTH 25 MILES

* LOCATION SOUTH OF ALASKA

NEXT UPDATE AND ADDITIONAL INFORMATION

--------------------------------------

* THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS

ADDITIONAL DATA ARE RECEIVED OR THE SITUATION CHANGES.

* FURTHER INFORMATION ABOUT THIS EVENT MAY BE FOUND ON THE

INTERNET AT WWW.TSUNAMI.GOV.

* AUTHORITATIVE INFORMATION ABOUT THE EARTHQUAKE FROM THE U.S.

GEOLOGICAL SURVEY CAN BE FOUND ON THE INTERNET AT

EARTHQUAKE.USGS.GOV.

$$

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