Overall Green Earthquake alert Off-shore on 18 Apr 2020 08:25 UTC

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M 6.6 Off-shore on 18 Apr 2020 08:25 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)

18/04 18:26 WEGM42PHEB180837

18/04 08:45 WEIO24AMMC180844

18/04 08:38 WEAK53PAAQ180837

18/04 08:36 WEPA42PHEB180835

18/04 08:35 WEPA40RJTD180835

18/04 08:30 WEPA40RJTD180830

17/04 22:26 WEHW42PHEB180836

17/04 21:26 WEZS42PHEB180836

2020-04-18 18:26 message from NTWC link

Key information extracted from original GTS message :

Evaluation

Original Message :

WEGM42 PHEB 180837

TIBGUM

TSUNAMI INFORMATION STATEMENT NUMBER 1

NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI

637 PM CHST SAT APR 18 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 6.9 OCCURRED IN

THE BONIN ISLANDS, JAPAN REGION AT 626 PM CHST ON SATURDAY

APRIL 18 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 6.9

* ORIGIN TIME 626 PM CHST APR 18 2020

* COORDINATES 27.2 NORTH 140.7 EAST

* DEPTH 301 MILES

* LOCATION BONIN ISLANDS JAPAN REGION

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.

$$

2020-04-18 08:45 link

Original Message :

WEIO24 AMMC 180844
---------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 1
IOTWMS TSUNAMI SERVICE PROVIDER AUSTRALIA [JATWC]
ISSUED AT 0844 UTC SATURDAY 18 APRIL 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: 6.6 MWP
DEPTH: 468KM
DATE: 18 APR 2020
ORIGIN TIME: 0825 UTC
LATITUDE: 27.06N
LONGITUDE: 140.15E
LOCATION: BONIN ISLANDS, JAPAN REGION

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

>

2020-04-18 08:38 message from NTWC link

Key information extracted from original GTS message :

Evaluation

There is no TSUNAMI danger for the u s west coast BRITISH columbia or alaska
Based on the depth of the earthquake a TSUNAMI is not expected
An earthquake has occurred with parameters listed below

Original Message :

WEAK53 PAAQ 180837
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
137 AM PDT Sat Apr 18 2020

...THIS IS A TSUNAMI INFORMATION STATEMENT FOR ALASKA, BRITISH
COLUMBIA, WASHINGTON, OREGON AND CALIFORNIA...

EVALUATION
----------
* There is no tsunami danger for the U.S. West Coast, British
Columbia, or Alaska.

* Based on the depth of the earthquake, a tsunami is not
expected.

* An earthquake has occurred with parameters listed below.

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

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

* Magnitude 6.9
* Origin Time 0026 AKDT Apr 18 2020
0126 PDT Apr 18 2020
0826 UTC Apr 18 2020
* Coordinates 27.2 North 140.7 East
* Depth 301 miles
* Location in the Bonin Islands, Japan region

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

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

* This will be the only U.S. National Tsunami Warning Center
message issued for this event unless additional information
becomes available.

$$

>

2020-04-18 08:36 message from NTWC link

Key information extracted from original GTS message :

Evaluation

An earthquake with a preliminary magnitude of 6.9 occurred in the bonin ISLANDS JAPAN region at 0826 UTC on saturday APRIL 18 2020
Based on all available data there is no TSUNAMI threat from this earthquake

Original Message :

WEPA42 PHEB 180835
TIBPAC

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
0835 UTC SAT APR 18 2020

...PTWC TSUNAMI INFORMATION 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 *****

PRELIMINARY EARTHQUAKE PARAMETERS - FROM JMA
--------------------------------------------

* MAGNITUDE 6.9
* ORIGIN TIME 0826 UTC APR 18 2020
* COORDINATES 27.2 NORTH 140.7 EAST
* DEPTH 485 KM / 301 MILES
* LOCATION BONIN ISLANDS JAPAN REGION

EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 6.9 OCCURRED IN
THE BONIN ISLANDS, JAPAN REGION AT 0826 UTC ON SATURDAY
APRIL 18 2020.

* BASED ON ALL AVAILABLE DATA... THERE IS NO TSUNAMI THREAT
FROM THIS EARTHQUAKE.

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

* NO ACTION IS REQUIRED.

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

* THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS
ADDITIONAL DATA ARE 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.

$$

>

2020-04-18 08:35 message from JMA link

Key information extracted from original GTS message :

Evaluation

There is no possibility of a TSUNAMI this will be the final bulletin unless changes in the potential for TSUNAMI generation are deemed possible based on earthquake re-evaluation or reports indicating TSUNAMI observation are received

Original Message :

WEPA40 RJTD 180835
TSUNAMI BULLETIN NUMBER 001
ISSUED BY NWPTAC(JMA)
ISSUED AT 0835Z 18 APR 2020
PART 01 OF 01 PARTS

HYPOCENTRAL PARAMETERS
ORIGIN TIME:0825Z 18 APR 2020
PRELIMINARY EPICENTER:LAT27.2NORTH LON140.7EAST
BONIN ISLANDS, JAPAN REGION
GUAM TO JAPAN
FOCAL DEPTH:485KM MAG:6.9 (MJMA)

EVALUATION
THERE IS NO POSSIBILITY OF A TSUNAMI

THIS WILL BE THE FINAL BULLETIN UNLESS CHANGES IN THE POTENTIAL
FOR TSUNAMI GENERATION ARE DEEMED POSSIBLE BASED ON EARTHQUAKE
RE-EVALUATION OR REPORTS INDICATING TSUNAMI OBSERVATION ARE
RECEIVED.

=

>

2020-04-18 08:30 message from JMA link

Original Message :

WEPA40 RJTD 180830
TSUNAMI BULLETIN ISSUED BY JMA AT 0830Z 18 APR

ORIGIN TIME 0825Z 18 APR
PRELIMINARY EPICENTER LAT 27.2 N. LON 140.7 E.
S OFF CENTRAL HONSHU
FOCAL DEPTH 485 KM MAG 6.9

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

>

2020-04-17 22:26 message from NTWC link

Key information extracted from original GTS message :

Evaluation

Original Message :

WEHW42 PHEB 180836

TIBHWX

HIZ001>003-005>009-012>014-016>021-023>026-181036-

TSUNAMI INFORMATION STATEMENT NUMBER 1

NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI

1036 PM HST FRI APR 17 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 - 1026 PM HST 17 APR 2020

COORDINATES - 27.2 NORTH 140.7 EAST

LOCATION - BONIN ISLANDS JAPAN REGION

MAGNITUDE - 6.9 MOMENT

EVALUATION

BASED ON ALL AVAILABLE DATA A DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS

NOT EXPECTED AND THERE IS NO TSUNAMI THREAT TO HAWAII. REPEAT. A

DESTRUCTIVE PACIFIC-WIDE TSUNAMI IS NOT EXPECTED AND THERE IS NO

TSUNAMI THREAT TO HAWAII.

THIS WILL BE THE ONLY STATEMENT ISSUED FOR THIS EVENT UNLESS

ADDITIONAL DATA ARE RECEIVED.

$$

2020-04-17 21:26 message from NTWC link

Key information extracted from original GTS message :

Evaluation

Original Message :

WEZS42 PHEB 180836

TIBPPG

TSUNAMI INFORMATION STATEMENT NUMBER 1

NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI

936 PM SST FRI APR 17 2020

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

AUDIENCE

--------

EMERGENCY MANAGERS... MEDIA... GENERAL PUBLIC

EVALUATION

----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 6.9 OCCURRED IN

THE BONIN ISLANDS, JAPAN REGION AT 926 PM SST ON FRIDAY

APRIL 17 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 6.9

* ORIGIN TIME 926 PM SST APR 17 2020

* COORDINATES 27.2 NORTH 140.7 EAST

* DEPTH 301 MILES

* LOCATION BONIN ISLANDS JAPAN REGION

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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