M 7.8 in United States on 22 Jul 2020 06:12 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.

2020-07-22 07:52


Original Message :

WEAK51 PAAQ 220751
TSUAK1

BULLETIN
Public Tsunami Message Number 4
NWS National Tsunami Warning Center Palmer AK
1151 PM AKDT Tue Jul 21 2020

UPDATES
-------
* Revised alert areas


...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)

* ALEUTIAN ISLANDS, Unimak Pass, Alaska (80 miles NE of
Unalaska) to Samalga Pass, Alaska (30 miles SW of Nikolski)


Alerts in the following areas have been canceled because
additional information and analysis have better defined the
threat.

* The Tsunami Advisory is canceled for the coastal areas of
Aleutian Islands from Samalga Pass, Alaska (30 miles SW of
Nikolski) to Amchitka Pass, Alaska (125 miles W of Adak)


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 2315 AKDT Jul 21
Unalaska 2350 AKDT Jul 21
Kodiak 0005 AKDT Jul 22
Cold Bay 0015 AKDT Jul 22


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


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

* Magnitude 7.8
* Origin Time 2213 AKDT Jul 21 2020
2313 PDT Jul 21 2020
0613 UTC Jul 22 2020
* Coordinates 55.2 North 158.6 West
* Depth 8 miles
* Location 75 miles S of Chignik, Alaska
520 miles SW of Anchorage, Alaska


RECOMMENDED ACTIONS - UPDATED
-----------------------------
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.

$$

>

2020-07-22 07:32

Key informations extracted from original GTS message :
Evaluation

  • An earthquake with a preliminary magnitude of 7.8 occurred in the alaska peninsula at 0613 UTC on wednesday JULY 22.2020
  • Based on all available data the TSUNAMI threat from this earthquake has now passed for areas covered by this bulletin
  • No tsunamis were observed at nearby deep ocean gauges
  • TSUNAMI threat forecast updated
  • There is no longer a TSUNAMI threat from this earthquake
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 LOCATIONLATLONTIME (UTC)HEIGHT (MT)WAVE (MIN)
Sand Point Ak55.3-160.506: 320.15 68


Original Message :

WEPA40 PHEB 220732
TSUPAC

TSUNAMI MESSAGE NUMBER 3
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
0729 UTC WED JUL 22 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 UNCHANGED IN THIS MESSAGE.


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

* MAGNITUDE 7.8
* ORIGIN TIME 0613 UTC JUL 22 2020
* COORDINATES 55.2 NORTH 158.6 WEST
* DEPTH 13 KM / 8 MILES
* LOCATION ALASKA PENINSULA


EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.8 OCCURRED IN
THE ALASKA PENINSULA AT 0613 UTC ON WEDNESDAY JULY 22 2020.

* BASED ON ALL AVAILABLE DATA... THE TSUNAMI THREAT FROM THIS
EARTHQUAKE HAS NOW PASSED FOR AREAS COVERED BY THIS BULLETIN.

* NO TSUNAMIS WERE OBSERVED AT NEARBY DEEP OCEAN GAUGES.

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

* THERE IS NO LONGER A TSUNAMI THREAT FROM THIS EARTHQUAKE.


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.


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)
-------------------------------------------------------------
SAND POINT AK 55.3N 160.5W 0632 0.15M/ 0.5FT 68


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.

$$

>

2020-07-22 07:20


Original Message :

WEAK51 PAAQ 220719
TSUAK1

BULLETIN
Public Tsunami Message Number 3
NWS National Tsunami Warning Center Palmer AK
1119 PM AKDT Tue Jul 21 2020

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


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


...THE TSUNAMI ADVISORY 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)

* ALEUTIAN ISLANDS, Unimak Pass, Alaska (80 miles NE of
Unalaska) to Samalga Pass, Alaska (30 miles SW of Nikolski)


Tsunami Advisory in Effect for;

* SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
Cape Suckling, Alaska (75 miles SE of Cordova) to Kennedy
Entrance, Alaska (40 miles SW of Homer)

* ALEUTIAN ISLANDS, Samalga Pass, Alaska (30 miles SW of
Nikolski) to Amchitka Pass, Alaska (125 miles W of Adak)
including the Pribilof Islands


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 2315 AKDT Jul 21
Unalaska 2350 AKDT Jul 21
Kodiak 0005 AKDT Jul 22
Cold Bay 0015 AKDT Jul 22
Adak 0015 AKDT Jul 22
Seward 0030 AKDT Jul 22
Valdez 0050 AKDT Jul 22
Cordova 0100 AKDT Jul 22
Saint Paul 0115 AKDT Jul 22
Homer 0125 AKDT Jul 22


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


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

* Magnitude 7.8
* Origin Time 2213 AKDT Jul 21 2020
2313 PDT Jul 21 2020
0613 UTC Jul 22 2020
* Coordinates 55.2 North 158.6 West
* Depth 8 miles
* Location 75 miles S of Chignik, Alaska
520 miles SW of Anchorage, Alaska


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

If you are in a tsunami warning or 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 warning and
in the advisory 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.

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.

If you are in a tsunami warning or advisory area;

* 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.

$$

>

2020-07-22 07:00

Key informations extracted from original GTS message :
Evaluation

  • An earthquake with a preliminary magnitude of 7.8 occurred in the alaska peninsula at 0613 UTC on wednesday JULY 22.2020
  • Based on all available data hazardous TSUNAMI waves are not forecast for some coasts
  • We are still waiting for more data to confirm

Original Message :

WEPA40 PHEB 220700
TSUPAC

TSUNAMI MESSAGE NUMBER 2
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
0655 UTC WED JUL 22 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 *****

THE TSUNAMI FORECAST IS UPDATED IN THIS MESSAGE.

NOTE UPGRADED EARTHQUAKE MAGNITUDE

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

* MAGNITUDE 7.8
* ORIGIN TIME 0613 UTC JUL 22 2020
* COORDINATES 55.2 NORTH 158.6 WEST
* DEPTH 13 KM / 8 MILES
* LOCATION ALASKA PENINSULA


EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.8 OCCURRED IN
THE ALASKA PENINSULA AT 0613 UTC ON WEDNESDAY JULY 22 2020.

* BASED ON ALL AVAILABLE DATA... HAZARDOUS TSUNAMI WAVES ARE
NOT FORECAST FOR SOME COASTS.
WE ARE STILL WAITING FOR MORE DATA TO CONFIRM.


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

* TSUNAMI WAVES ARE FORECAST TO BE LESS THAN 0.3 METERS ABOVE
THE TIDE LEVEL FOR THE COASTS OF

CHUUK... GUAM... HAWAII... HOWLAND AND BAKER... JAPAN...
JOHNSTON ATOLL... KIRIBATI... KOSRAE... MARSHALL
ISLANDS... MEXICO... MIDWAY ISLAND... NORTHERN MARIANAS...
NORTHWESTERN HAWAIIAN ISLANDS... PALAU... PALMYRA
ISLAND... POHNPEI... RUSSIA... WAKE ISLAND... AND YAP.


* ACTUAL AMPLITUDES AT THE COAST MAY VARY FROM FORECAST
AMPLITUDES DUE TO UNCERTAINTIES IN THE FORECAST AND LOCAL
FEATURES. IN PARTICULAR MAXIMUM TSUNAMI AMPLITUDES ON ATOLLS
AND AT LOCATIONS WITH FRINGING OR BARRIER REEFS WILL LIKELY
BE MUCH SMALLER THAN THE FORECAST INDICATES.

* FOR OTHER AREAS COVERED BY THIS PRODUCT A FORECAST HAS NOT
YET BEEN COMPUTED. THE FORECAST WILL BE EXPANDED IF
NECESSARY IN SUBSEQUENT PRODUCTS.


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.

$$

>

2020-07-22 06:55


Original Message :

WEPA40 RJTD 220655
TSUNAMI BULLETIN ISSUED BY JMA AT 0655Z 22 JUL

ORIGIN TIME 0613Z 22 JUL
PRELIMINARY EPICENTER LAT 55.2 N. LON 158.6 W.
ALEUTIAN ISLANDS
FOCAL DEPTH /// KM MAG 7.5

NO SIGNIFICANT TSUNAMI IS EXPECTED IN COASTAL AREAS OF JAPAN
NO FURTHER ACTION WILL BE TAKEN
=

>

2020-07-22 06:52


Original Message :

WEAK51 PAAQ 220650
TSUAK1

BULLETIN
Public Tsunami Message Number 2
NWS National Tsunami Warning Center Palmer AK
1050 PM AKDT Tue Jul 21 2020

UPDATES
-------
* Revised alert areas
* Revised magnitude


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


...A TSUNAMI ADVISORY 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)

* ALEUTIAN ISLANDS, Unimak Pass, Alaska (80 miles NE of
Unalaska) to Samalga Pass, Alaska (30 miles SW of Nikolski)


Tsunami Advisory in Effect for;

* SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
Cape Suckling, Alaska (75 miles SE of Cordova) to Kennedy
Entrance, Alaska (40 miles SW of Homer)

* ALEUTIAN ISLANDS, Samalga Pass, Alaska (30 miles SW of
Nikolski) to Amchitka Pass, Alaska (125 miles W of Adak)
including the Pribilof Islands


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 7.8
* Origin Time 2213 AKDT Jul 21 2020
2313 PDT Jul 21 2020
0613 UTC Jul 22 2020
* Coordinates 55.2 North 158.6 West
* Depth 8 miles
* Location 75 miles S of Chignik, Alaska
520 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 2315 AKDT Jul 21
Unalaska 2350 AKDT Jul 21
Kodiak 0005 AKDT Jul 22
Cold Bay 0015 AKDT Jul 22
Adak 0015 AKDT Jul 22
Seward 0030 AKDT Jul 22
Valdez 0050 AKDT Jul 22
Cordova 0100 AKDT Jul 22
Saint Paul 0115 AKDT Jul 22
Homer 0125 AKDT Jul 22


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


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

If you are in a tsunami warning or 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 warning and
in the advisory 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.

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.

If you are in a tsunami warning or advisory area;

* 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.

$$

>

2020-07-22 06:51


Original Message :

WEIO24 AMMC 220651
---------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 4
IOTWMS TSUNAMI SERVICE PROVIDER AUSTRALIA [JATWC]
ISSUED AT 0651 UTC WEDNESDAY 22 JULY 2020
---------------------------------------------------------------------
TO: INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES [NTWCs]
FROM: IOTWMS-TSP AUSTRALIA

NOTIFICATION:
IOTWMS-TSP AUSTRALIA HAS JUST ISSUED TSUNAMI BULLETIN NUMBER 4
FOR THE INDIAN OCEAN, BASED ON THE FOLLOWING EARTHQUAKE EVENT:

MAGNITUDE: 8.0 MWP
DEPTH: 11KM
DATE: 22 JUL 2020
ORIGIN TIME: 0612 UTC
LATITUDE: 55.16N
LONGITUDE: 158.57W
LOCATION: ALASKA PENINSULA

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

>

2020-07-22 06:51


Original Message :

WEIO24 AMMC 220650
---------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 3
IOTWMS TSUNAMI SERVICE PROVIDER AUSTRALIA [JATWC]
ISSUED AT 0650 UTC WEDNESDAY 22 JULY 2020
---------------------------------------------------------------------
TO: INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES [NTWCs]
FROM: IOTWMS-TSP AUSTRALIA

NOTIFICATION:
IOTWMS-TSP AUSTRALIA HAS JUST ISSUED TSUNAMI BULLETIN NUMBER 3
FOR THE INDIAN OCEAN, BASED ON THE FOLLOWING EARTHQUAKE EVENT:

MAGNITUDE: 8.0 MWP [REVISED]
DEPTH: 11KM
DATE: 22 JUL 2020
ORIGIN TIME: 0612 UTC
LATITUDE: 55.16N
LONGITUDE: 158.57W
LOCATION: ALASKA PENINSULA

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

>

2020-07-22 06:43


Original Message :

WEIO24 AMMC 220643
---------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 2
IOTWMS TSUNAMI SERVICE PROVIDER AUSTRALIA [JATWC]
ISSUED AT 0643 UTC WEDNESDAY 22 JULY 2020
---------------------------------------------------------------------
TO: INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES [NTWCs]
FROM: IOTWMS-TSP AUSTRALIA

NOTIFICATION:
IOTWMS-TSP AUSTRALIA HAS JUST ISSUED TSUNAMI BULLETIN NUMBER 2
FOR THE INDIAN OCEAN, BASED ON THE FOLLOWING EARTHQUAKE EVENT:

MAGNITUDE: 7.9 MWP [REVISED]
DEPTH: 14KM
DATE: 22 JUL 2020
ORIGIN TIME: 0612 UTC
LATITUDE: 55.16N
LONGITUDE: 158.59W
LOCATION: ALASKA PENINSULA

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

>

2020-07-22 06:28


Original Message :

WEIO22 WIIX 220628
TSP-INATEWS-20200722-0628-001
--------------------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 1
IOTWMS TSUNAMI SERVICE PROVIDER INDONESIA (INATEWS-BMKG)
ISSUED AT 0628 UTC, WEDNESDAY, 22 JULY 2020
--------------------------------------------------------------------------------
TO: INDIAN OCEAN NATIONAL TSUNAMI WARNING CENTRES (NTWC)
FROM: IOTWMS-TSP INDONESIA

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

MAGNITUDE : 7.5 MWP
DEPTH : 10KM
DATE : 22 JUL 2020
ORIGIN TIME: 06:12:42 UTC
LATITUDE : 55.24N
LONGITUDE : 158.64W
LOCATION : ALASKA PENINSULA

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

HTTP://RTSP.BMKG.GO.ID

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:

INDONESIA TSUNAMI EARLY WARNING SYSTEM (INATEWS)
THE AGENCY FOR METEOROLOGY CLIMATOLOGY AND GEOPHYSICS (BMKG)
ADDRESS: JL. ANGKASA I NO.2 KEMAYORAN, JAKARTA, INDONESIA, 10720
TEL.: 62 (21) 65867045
FAX: 62 (21) 6546316
P.O. BOX 3540 JAKARTA
WEBSITE: HTTP://RTSP.BMKG.GO.ID/PUBLICBULL.PHP
EMAIL : INARTSP@BMKG.GO.ID
MONITRTWP@BMKG.GO.ID

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

>

2020-07-22 06:24

Key informations extracted from original GTS message :
Evaluation

  • An earthquake with a preliminary magnitude of 7.5 occurred in the alaska peninsula at 0613 UTC on wednesday JULY 22.2020
  • 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 220624
TSUPAC

TSUNAMI MESSAGE NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
0623 UTC WED JUL 22 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 7.5
* ORIGIN TIME 0613 UTC JUL 22 2020
* COORDINATES 55.2 NORTH 158.6 WEST
* DEPTH 13 KM / 8 MILES
* LOCATION ALASKA PENINSULA


EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 7.5 OCCURRED IN
THE ALASKA PENINSULA AT 0613 UTC ON WEDNESDAY JULY 22 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.

$$

>

2020-07-22 06:24


Original Message :

WEIO24 AMMC 220624
---------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 1
IOTWMS TSUNAMI SERVICE PROVIDER AUSTRALIA [JATWC]
ISSUED AT 0624 UTC WEDNESDAY 22 JULY 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: 5KM
DATE: 22 JUL 2020
ORIGIN TIME: 0612 UTC
LATITUDE: 55.14N
LONGITUDE: 158.53W
LOCATION: ALASKA PENINSULA

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

>

2020-07-22 06:20


Original Message :

WEAK51 PAAQ 220619
TSUAK1

BULLETIN
Public Tsunami Message Number 1
NWS National Tsunami Warning Center Palmer AK
1019 PM AKDT Tue Jul 21 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 2213 AKDT Jul 21 2020
2313 PDT Jul 21 2020
0613 UTC Jul 22 2020
* Coordinates 55.2 North 158.6 West
* Depth 8 miles
* Location 75 miles S of Chignik, Alaska
520 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 2315 AKDT Jul 21
Kodiak 0005 AKDT Jul 22
Cold Bay 0015 AKDT Jul 22


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.

$$

>