M 6.1 in United States on 21 Dec 2023 14:55 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.



2023-12-21 15:00 message from NTWC link

Key information extracted from original GTS message :
Evaluation

  • An earthquake has occurred a TSUNAMI is not expected

Original Message :

WEAK53 PAAQ 211459
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
559 AM AKST Thu Dec 21 2023

...THIS IS A TSUNAMI INFORMATION STATEMENT...

EVALUATION
----------
* An earthquake has occurred; a tsunami is not expected.


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

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

* Magnitude 6.0
* Origin Time 0556 AKST Dec 21 2023
0656 PST Dec 21 2023
1456 UTC Dec 21 2023
* Coordinates 51.2 North 175.4 West
* Depth 1 miles
* Location 85 miles SW of Atka Village, Alaska
75 miles SE of Adak, Alaska


ADDITIONAL INFORMATION AND NEXT UPDATE
--------------------------------------
* Further information will be issued by the United States
Geological Survey (earthquake.usgs.gov) or the appropriate
regional seismic network.

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

$$