This information statement for 45 miles SE of Buldir I., Alaska is no longer in force, and was issued by NWS National Tsunami Warning Center.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 52.128, 176.905 · nearest coast US

What this bulletin says

Information Statement

There is NO tsunami danger from this earthquake.

Preliminary magnitude 5.0(mb). Magnitudes are revised as more data arrives.

Bulletin details

Category: Information
Bulletin Issue Time: 2026.09.04 02:36:56 UTC
Preliminary Magnitude: 5.0(mb)
Lat/Lon: 52.128 / 176.905
Affected Region: 45 miles SE of Buldir I., 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 040236
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
636 PM AKDT Thu Sep 3 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      5.0
 * Origin Time    1829 AKDT Sep 03 2026
                  1929  PDT Sep 03 2026
                  0229  UTC Sep 04 2026
 * Coordinates    52.1 North 176.9 East
 * Depth          32 miles
 * Location       45 miles SE of Buldir I., Alaska
                  275 miles W 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

4 September 2026 at 02:36 UTC

Effective

4 September 2026 at 02:36 UTC

Affected area

45 miles SE of Buldir I., Alaska

Issued by

NWS National Tsunami Warning Center

The earthquake behind it

5.0M 5.0 - 264 km ESE of Attu Station, AlaskaRight at the bulletin's epicentre · Tap for the full event, aftershocks and revisions

1 other earthquake around the same time

5.0M 5.0 - 236 km ESE of Attu Station, Alaska43 km from the bulletin's epicentre

Not sure what information statement means? Warning, watch and advisory explained.

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