This information statement for 45 miles SW of Nikolski, Alaska is no longer in force, and was issued by NWS National Tsunami Warning Center. It is kept here as a record of what was issued and when.

Epicentre 52.289, -169.283 · nearest coast US

What this bulletin says

Information Statement

There is NO tsunami danger from this earthquake.

Preliminary magnitude 5.1(Mwp). Magnitudes are revised as more data arrives.

Bulletin details

Category: Information
Bulletin Issue Time: 2026.09.01 06:52:31 UTC
Preliminary Magnitude: 5.1(Mwp)
Lat/Lon: 52.289 / -169.283
Affected Region: 45 miles SW of Nikolski, Alaska
Note: There is NO tsunami danger from this earthquake.
Definition: An information statement indicates that an earthquake has occurred, but does not pose a tsunami threat, or that a tsunami warning, advisory, or watch has been issued for another section of the ocean.

Official bulletin

WEAK53 PAAQ 010652
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
1052 PM AKDT Mon Aug 31 2026

...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      5.1
 * Origin Time    2245 AKDT Aug 31 2026
                  2345  PDT Aug 31 2026
                  0645  UTC Sep 01 2026
 * Coordinates    52.3 North 169.3 West
 * Depth          1 miles
 * Location       45 miles SW of Nikolski, Alaska
                  315 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.

$$

View on tsunami.gov

Issued

1 September 2026 at 06:52 UTC

Effective

1 September 2026 at 06:52 UTC

Issued by

NWS National Tsunami Warning Center

The earthquake behind it

5.3M 5.3 - 89 km SSW of Nikolski, Alaska14 km from the bulletin's epicentre · Tap for the full event, aftershocks and revisions

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