WEAK53 PAAQ 231006
TIBAK1
Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
106 AM AKST Mon Feb 23 2026
...THIS IS A TSUNAMI INFORMATION STATEMENT...
EVALUATION
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* 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 5.9
* Origin Time 0102 AKST Feb 23 2026
0202 PST Feb 23 2026
1002 UTC Feb 23 2026
* Coordinates 52.5 North 170.0 West
* Depth 1 miles
* Location 50 miles SW of Nikolski, Alaska
290 miles E 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.
$$