Overall Green Earthquake alert in United States on 22 Sep 2025 09:56 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 4.59 in United States on 22 Sep 2025 09:56 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)

22/09 10:00 WEAK53PAAQ220959

2025-09-22 10:00 message from NTWC link

Key information extracted from original GTS message :

Evaluation

There is no TSUNAMI danger from this earthquake

Original Message :

WEAK53 PAAQ 220959
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
259 AM PDT Mon Sep 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 4.3
* Origin Time 0156 AKDT Sep 22 2025
0256 PDT Sep 22 2025
0956 UTC Sep 22 2025
* Coordinates 37.8 North 122.3 West
* Depth 6 miles
* Location 70 miles SW of Sacramento, California
10 miles NE of San Francisco, California

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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