WEAK51 PAAQ 300820
TSUAK1
BULLETIN
Public Tsunami Message Number 10
NWS National Tsunami Warning Center Palmer AK
120 AM PDT Wed Jul 30 2025
UPDATES
-------
* Updated observations
....THE TSUNAMI WARNING REMAINS IN EFFECT...
....THE TSUNAMI ADVISORY REMAINS IN EFFECT...
Tsunami Warning in Effect for;
* CALIFORNIA, The coast from Cape Mendocino, California to
The Oregon/Cal. Border
Tsunami Advisory in Effect for;
* CALIFORNIA, The coast from The Cal./Mexico Border to Cape
Mendocino, California including San Francisco Bay
* OREGON, The coast from The Oregon/Cal. Border to The
Oregon/Wash. Border including the Columbia River estuary
coast
* WASHINGTON, Outer coast from the Oregon/Washington border
to Slip Point, Columbia River estuary coast, and the Juan
de Fuca Strait coast
* BRITISH COLUMBIA, The north coast and Haida Gwaii, the
central coast and northeast Vancouver Island, the outer
west coast of Vancouver Island, the Juan de Fuca Strait
coast
* SOUTH ALASKA AND THE ALASKA PENINSULA, Pacific coasts from
Chignik Bay, Alaska to Unimak Pass, Alaska (80 miles NE of
Unalaska)
* ALEUTIAN ISLANDS, Unimak Pass, Alaska (80 miles NE of
Unalaska) to Attu, Alaska including the Pribilof Islands
For other US and Canadian Pacific coasts in North America,
there is no tsunami threat.
FORECASTS OF TSUNAMI ACTIVITY
-----------------------------
* A tsunami has been generated. The first waves are forecasted to
arrive at the following locations and specified times.
* Forecast tsunami duration is the approximate length of time which
the tsunami may produce dangerous currents and waves.
* Forecast max tsunami height is the highest expected water level
above the tide.
* Forecasts are not provided for sites which have been impacted
more than an hour prior to the time of this message.
FORECAST FORECAST FORECAST
START TSUNAMI MAX TSUNAMI
SITE OF TSUNAMI DURATION HEIGHT
---- ---------- -------- -------------
* Washington
Port Townsend 0045 PDT Jul 30 less than 1ft
Bellingham 0110 PDT Jul 30 less than 1ft
Tacoma 0200 PDT Jul 30
* California
Port San Luis 0035 PDT Jul 30 24 hrs 2.0- 3.8 ft
San Francisco 0040 PDT Jul 30 less than 1ft
Santa Barbara 0045 PDT Jul 30 less than 1ft
Los Angeles Harb 0100 PDT Jul 30 less than 1ft
Newport Beach 0110 PDT Jul 30 less than 1ft
La Jolla 0110 PDT Jul 30 less than 1ft
Oceanside 0115 PDT Jul 30 less than 1ft
OBSERVATIONS OF TSUNAMI ACTIVITY - UPDATED
------------------------------------------
* Observed max tsunami height is the highest recorded water level
above the tide level up to the time of this message.
TIME OBSERVED MAX
SITE OF MEASUREMENT TSUNAMI HEIGHT
---------------------------- ---------------- --------------
Amchitka Alaska 0056 PDT Jul 30 1.8ft
Atka Alaska 2149 PDT Jul 29 1.5ft
Adak Alaska 2321 PDT Jul 29 2.7ft
Nikolski Alaska 2227 PDT Jul 29 1.2ft
Unalaska Alaska 0.8ft
Saint Paul Alaska 0.4ft
Sand Point Alaska 0.3ft
King Cove Alaska 0.0ft
Langara BC 2305 PDT Jul 29 0.2ft
Winter Harbour BC 0032 PDT Jul 30 0.9ft
Tofino British Columbia 0020 PDT Jul 30 0.7ft
Port Orford Oregon 0019 PDT Jul 30 0.7ft
La Push Washington 0024 PDT Jul 30 0.6ft
Charleston Oregon 0030 PDT Jul 30 0.6ft
Humboldt Bay California 0041 PDT Jul 30 0.8ft
Crescent City CA 0037 PDT Jul 30 1.5ft
Bamfield BC 0053 PDT Jul 30 0.3ft
Arena Cove California 0053 PDT Jul 30 1.6ft
Point Reyes California 0055 PDT Jul 30 0.8ft
Monterey California 0051 PDT Jul 30 1.4ft
Kushiro Japan 1.1ft
Abashiri Japan 0.8ft
Midway Island UM 1.0ft
Hanasaki Japan 1.1ft
Nikolskoe Russia 1714 PDT Jul 29 0.2ft
PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------
* Magnitude 8.8
* Origin Time 1525 AKDT Jul 29 2025
1625 PDT Jul 29 2025
2325 UTC Jul 29 2025
* Coordinates 52.2 North 160.0 East
* Depth 46 miles
* Location 315 miles SW of Bering I., Komandorski
80 miles SE of Petropavlovsk, Kamchatka
RECOMMENDED ACTIONS
-------------------
* See message number 4 for recommended actions.
IMPACTS
-------
* See message number 4 for possible impacts.
ADDITIONAL INFORMATION AND NEXT UPDATE
--------------------------------------
* Refer to the internet site
tsunami.gov for more information.
* Pacific coastal residents outside California, Oregon,
Washington, British Columbia and Alaska should refer to the
Pacific Tsunami Warning Center messages at
tsunami.gov.
* This message will be updated within 60 minutes.
$$