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NWS National Tsunami Warning Center

in the Bonin Islands, Japan region

Tsunami Information StatementNo longer in force
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This Tsunami Information Statement for in the Bonin Islands, Japan region is no longer in force, and was issued by NWS National Tsunami Warning Center.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 28.000, 139.900 · nearest coast JP

What this bulletin says

Tsunami Information Statement

There is no tsunami danger for the U.S. West Coast, British Columbia, or Alaska. * Based on the depth of the earthquake, a tsunami is not expected.

Preliminary magnitude 7.0(Mwp). Magnitudes are revised as more data arrives.

Bulletin details

Category
Information
Bulletin Issue Time
2026.10.25 02:26:53 UTC
Preliminary Magnitude
7.0(Mwp)
Lat/Lon
28.000 / 139.900
Affected Region
in the Bonin Islands, Japan region
Note
There is no tsunami danger for the U.S. West Coast, British Columbia, or Alaska. * Based on the depth of the earthquake, 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 250226
TIBAK1

Tsunami Information Statement Number 1
NWS National Tsunami Warning Center Palmer AK
726 PM PDT Sat Oct 24 2026

...THIS IS A TSUNAMI INFORMATION STATEMENT FOR ALASKA, BRITISH
   COLUMBIA, WASHINGTON, OREGON AND CALIFORNIA...

EVALUATION
----------
 * There is no tsunami danger for the U.S. West Coast, British 
   Columbia, or Alaska. 

 * Based on the depth of the earthquake, a tsunami is not 
   expected. 

 * An earthquake has occurred with parameters listed below. 


PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

 * The following parameters are based on a rapid preliminary
   assessment of the earthquake and changes may occur.

 * Magnitude      7.0
 * Origin Time    1809 AKDT Oct 24 2026
                  1909  PDT Oct 24 2026
                  0209  UTC Oct 25 2026
 * Coordinates    28.0 North 139.9 East
 * Depth          294 miles
 * Location       in the Bonin Islands, Japan region


ADDITIONAL INFORMATION AND NEXT UPDATE
--------------------------------------
 * Refer to the internet site tsunami.gov for more information. 

 * Pacific coastal regions outside California, Oregon, Washington, 
   British Columbia, and Alaska should refer to the Pacific Tsunami 
   Warning Center messages at tsunami.gov. 

 * 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

in the Bonin Islands, Japan region

Issued by

NWS National Tsunami Warning Center

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