Tsunami - WEAK51 PAAQ

WEAK51 PAAQ 301520 TSUAK1 BULLETIN Public Tsunami Message Number 17 NWS National Tsunami Warning Center Palmer AK 820 AM PDT Wed Jul 30 2025 UPDATES ------- * Updated observations * Revised alert areas ....THE TSUNAMI ADVISORY REMAINS IN EFFECT... Tsunami Advisory in Effect for; * CALIFORNIA, The coast from Rincon Point, California (15 miles SE of Santa Barbara) to Humboldt/Del Norte Line, California including San Francisco Bay * CALIFORNIA, The coast from Humboldt/Del Norte Line, California to The Oregon/Cal. Border * 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 * ALEUTIAN ISLANDS, Samalga Pass, Alaska (30 miles SW of Nikolski) to Attu, Alaska including the Pribilof Islands For other US and Canadian Pacific coasts in North America, there is no tsunami threat. 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 0440 PDT Jul 30 0.9ft Mothra Endeavour Canada 1731 PDT Jul 29 0.3ft Main Endeavour Field CA 1739 PDT Jul 29 0.3ft Winter Harbour BC 0455 PDT Jul 30 1.0ft Tofino British Columbia 0156 PDT Jul 30 0.5ft Port Orford Oregon 0127 PDT Jul 30 1.4ft La Push Washington 0342 PDT Jul 30 1.3ft Neah Bay Washington 0248 PDT Jul 30 0.4ft Charleston Oregon 0443 PDT Jul 30 0.9ft Humboldt Bay California 0132 PDT Jul 30 1.2ft Crescent City CA 0139 PDT Jul 30 4.0ft Bamfield BC 0053 PDT Jul 30 0.4ft Newport Oregon 0423 PDT Jul 30 0.6ft Westport South Bay WA 0043 PDT Jul 30 0.5ft Arena Cove California 0112 PDT Jul 30 3.0ft Toke Point Washington 0053 PDT Jul 30 0.4ft Point Reyes California 0423 PDT Jul 30 2.6ft Monterey California 0424 PDT Jul 30 1.5ft Port Angeles Washington 0646 PDT Jul 30 1.2ft Astoria Oregon 0525 PDT Jul 30 0.5ft Victoria Harbor BC 0123 PDT Jul 30 0.2ft Bella Bella BC 1724 PDT Jul 29 0.5ft Port San Luis CA 0214 PDT Jul 30 2.7ft San Francisco CA 0224 PDT Jul 30 1.2ft Santa Barbara CA 0302 PDT Jul 30 1.3ft Richmond California 0241 PDT Jul 30 0.8ft Alameda California 0247 PDT Jul 30 1.2ft Santa Monica California 0412 PDT Jul 30 0.9ft Los Angeles Harbor CA 0313 PDT Jul 30 0.5ft La Jolla California 0413 PDT Jul 30 0.5ft San Diego California 0318 PDT Jul 30 0.5ft Redwood City California 0425 PDT Jul 30 0.6ft Kushiro Japan 1.1ft Abashiri Japan 0.8ft Midway Island UM 1.0ft Bella Bella BC 0232 PDT Jul 30 0.6ft Hanasaki Japan 1.1ft Nikolskoe Russia 1714 PDT Jul 29 0.2ft Port Alberni BC 0107 PDT Jul 30 1.2ft Wauna OR 0541 PDT Jul 30 0.4ft 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 - UPDATED ----------------------------- Actions to protect human life and property will vary within tsunami advisory areas. If you are in a tsunami advisory area; * Move out of the water, off the beach, and away from harbors, marinas, breakwaters, bays and inlets. * Be alert to and follow instructions from your local emergency officials because they may have more detailed or specific information for your location. * If you feel a strong earthquake or extended ground rolling take immediate protective actions such as moving inland and/or uphill preferably by foot. * Boat operators, * Where time and conditions permit, move your boat out to sea to a depth of at least 180 feet. * If at sea avoid entering shallow water, harbors, marinas, bays, and inlets to avoid floating and submerged debris and strong currents. * Do not go to the shore to observe the tsunami. * Do not return to the coast until local emergency officials indicate it is safe to do so. IMPACTS ------- Impacts will vary at different locations in the advisory areas. If you are in a tsunami advisory area; * A tsunami with strong waves and currents is possible. * Waves and currents can drown or injure people who are in the water. * Currents at beaches and in harbors, marinas, bays, and inlets may be especially dangerous. * Some impacts may continue for many hours to days after arrival of the first wave. * The first wave may not be the largest so later waves may be larger. * Each wave may last 5 to 45 minutes as a wave encroaches and recedes. * Coasts facing all directions are threatened because the waves can wrap around islands and headlands and into bays. * Strong shaking or rolling of the ground indicates an earthquake has occurred and a tsunami may be imminent. * A rapidly receding or receded shoreline, unusual waves and sounds, and strong currents are signs of a tsunami. * The tsunami may appear as water moving rapidly out to sea, a gentle rising tide like flood with no breaking wave, as a series of breaking waves, or a frothy wall of water. 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. $$