Overall Green Earthquake alert in United States on 23 Nov 2025 08:21 UTC

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

M 5.5 in United States on 23 Nov 2025 08:21 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)

23/11 08:27 WEAK53PAAQ230826

2025-11-23 08:27 message from NTWC link

Key information extracted from original GTS message :

Evaluation

There is no TSUNAMI danger from this earthquake

Original Message :

WEAK53 PAAQ 230826
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
1126 PM AKST Sat Nov 22 2025

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

EVALUATION
----------
* There is NO tsunami danger from this earthquake.

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

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

* Magnitude 5.2
* Origin Time 2322 AKST Nov 22 2025
0022 PST Nov 23 2025
0822 UTC Nov 23 2025
* Coordinates 51.5 North 177.1 West
* Depth 22 miles
* Location 135 miles SW of Atka Village, Alaska
35 miles SW 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.

$$

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