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NWS National Tsunami Warning Center

45 miles NE of Amukta Pass, Alaska

Tsunami Information StatementNo longer in force
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This Tsunami Information Statement for 45 miles NE of Amukta Pass, Alaska is no longer in force, and was issued by NWS National Tsunami Warning Center.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 52.810, -171.341 · nearest coast US

What this bulletin says

Tsunami Information Statement

An earthquake has occurred; a tsunami is not expected.

Preliminary magnitude 6.3(Mwp). Magnitudes are revised as more data arrives.

Bulletin details

Category
Information
Bulletin Issue Time
2026.09.17 14:23:45 UTC
Preliminary Magnitude
6.3(Mwp)
Lat/Lon
52.810 / -171.341
Affected Region
45 miles NE of Amukta Pass, Alaska
Note
An earthquake has occurred; a tsunami is not expected.
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 171423
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
623 AM AKDT Thu Sep 17 2026

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

EVALUATION
----------
 * 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      6.3
 * Origin Time    0620 AKDT Sep 17 2026
                  0720  PDT Sep 17 2026
                  1420  UTC Sep 17 2026
 * Coordinates    52.8 North 171.3 West
 * Depth          52 miles
 * Location       45 miles NE of Amukta Pass, Alaska
                  235 miles NE 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

Effective

Affected area

45 miles NE of Amukta Pass, Alaska

Issued by

NWS National Tsunami Warning Center

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