M 6.4 in Tonga on 23 Dec 2018 23:08 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.



2018-12-24 09:09 message from NTWC link

Key information extracted from original GTS message :
Evaluation


Original Message :

WEGM42 PHEB 232317

TIBGUM



TSUNAMI INFORMATION STATEMENT NUMBER 1

NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI

917 AM CHST MON DEC 24 2018



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





AUDIENCE

--------

EMERGENCY MANAGERS... MEDIA... GENERAL PUBLIC





EVALUATION

----------



* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 6.5 OCCURRED IN

THE TONGA ISLANDS AT 909 AM CHST ON MONDAY DECEMBER 24 2018.



* 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 6.5

* ORIGIN TIME 909 AM CHST DEC 24 2018

* COORDINATES 20.5 SOUTH 174.9 WEST

* DEPTH 66 MILES

* LOCATION TONGA





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.



$$



2018-12-23 23:25 link


Original Message :

WEIO22 WIIX 232324
TSP-INATEWS-20181223-2324-001
--------------------------------------------------------------------------------
TSUNAMI BULLETIN NOTIFICATION MESSAGE NUMBER 1
IOTWMS TSUNAMI SERVICE PROVIDER INDONESIA (INATEWS-BMKG)
ISSUED AT 2324 UTC, SUNDAY, 23 DECEMBER 2018
--------------------------------------------------------------------------------
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 : 6.5 MWP
DEPTH : 92KM
DATE : 23 DEC 2018
ORIGIN TIME: 23:08:39 UTC
LATITUDE : 20.36S
LONGITUDE : 175.20W
LOCATION : TONGA ISLANDS

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

>

2018-12-23 23:19 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 earthquake information and historic TSUNAMI records the earthquake is not expected to generate a tsunami
  • An earthquake has occurred with parameters listed below

Original Message :

WEAK53 PAAQ 232318
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
318 PM PST Sun Dec 23 2018

...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 earthquake information and historic tsunami records,
the earthquake is not expected to generate a tsunami.

* An earthquake has occurred with parameters listed below.


PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------
* The following parameters are based on a rapid preliminary
assessment and changes may occur.

* Magnitude 6.5
* Origin Time 1408 AKST Dec 23 2018
1508 PST Dec 23 2018
2308 UTC Dec 23 2018
* Coordinates 20.5 South 174.9 West
* Depth 62 miles
* Location near the Tonga Islands


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.

$$

>

2018-12-23 23:17 message from NTWC link

Key information extracted from original GTS message :
Evaluation

  • An earthquake with a preliminary magnitude of 6.5 occurred in the TONGA ISLANDS at 2309 UTC on sunday december 23 2018
  • Based on all available data there is no TSUNAMI threat from this earthquake

Original Message :

WEPA42 PHEB 232316
TIBPAC

TSUNAMI INFORMATION STATEMENT NUMBER 1
NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI
2316 UTC SUN DEC 23 2018

...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
---------------------------------

* MAGNITUDE 6.5
* ORIGIN TIME 2309 UTC DEC 23 2018
* COORDINATES 20.5 SOUTH 174.9 WEST
* DEPTH 106 KM / 66 MILES
* LOCATION TONGA


EVALUATION
----------

* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 6.5 OCCURRED IN
THE TONGA ISLANDS AT 2309 UTC ON SUNDAY DECEMBER 23 2018.

* 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.

$$

>

2018-12-23 13:09 message from NTWC link

Key information extracted from original GTS message :
Evaluation


Original Message :

WEHW42 PHEB 232316

TIBHWX

HIZ001>003-005>009-012>014-016>021-023>026-240116-



TSUNAMI INFORMATION STATEMENT NUMBER 1

NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI

116 PM HST SUN DEC 23 2018



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 - 0109 PM HST 23 DEC 2018

COORDINATES - 20.5 SOUTH 174.9 WEST

LOCATION - TONGA

MAGNITUDE - 6.5 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.



$$



2018-12-23 12:09 message from NTWC link

Key information extracted from original GTS message :
Evaluation


Original Message :

WEZS42 PHEB 232315

TIBPPG



TSUNAMI INFORMATION STATEMENT NUMBER 1

NWS PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI

1215 PM SST SUN DEC 23 2018



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





AUDIENCE

--------

EMERGENCY MANAGERS... MEDIA... GENERAL PUBLIC





EVALUATION

----------



* AN EARTHQUAKE WITH A PRELIMINARY MAGNITUDE OF 6.5 OCCURRED IN

THE TONGA ISLANDS AT 1209 PM SST ON SUNDAY DECEMBER 23 2018.



* SOME AREAS MAY HAVE EXPERIENCED MODERATE SHAKING.



* 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 6.5

* ORIGIN TIME 1209 PM SST DEC 23 2018

* COORDINATES 20.5 SOUTH 174.9 WEST

* DEPTH 66 MILES

* LOCATION TONGA





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.



$$