Tsunami - WEAK51 PAAQ

WEAK51 PAAQ 300225 TSUAK1 BULLETIN Public Tsunami Message Number 4 NWS National Tsunami Warning Center Palmer AK 725 PM PDT Tue Jul 29 2025 UPDATES ------- * Updated observations * Revised magnitude ...THE TSUNAMI WARNING REMAINS IN EFFECT... ...THE TSUNAMI ADVISORY REMAINS IN EFFECT... Tsunami Warning in Effect for; * ALEUTIAN ISLANDS, Samalga Pass, Alaska (30 miles SW of Nikolski) to Attu, Alaska including the Pribilof Islands Tsunami Advisory in Effect for; * CALIFORNIA, The coast from The Cal./Mexico Border to The Oregon/Cal. Border 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 Samalga Pass, Alaska (30 miles SW of Nikolski) 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 ---- ---------- -------- ------------- * Alaska Adak 1740 AKDT Jul 29 15 hrs 1.2- 2.2 ft Unalaska 1845 AKDT Jul 29 less than 1ft Saint Paul 1855 AKDT Jul 29 less than 1ft Sand Point 1925 AKDT Jul 29 less than 1ft Cold Bay 2000 AKDT Jul 29 less than 1ft * British Columbia Langara 2205 PDT Jul 29 less than 1ft Tofino 2330 PDT Jul 29 less than 1ft * Oregon Port Orford 2335 PDT Jul 29 15 hrs 1.0- 1.8 ft Charleston 2345 PDT Jul 29 less than 1ft Brookings 2350 PDT Jul 29 9 hrs 0.8- 1.5 ft Seaside 2355 PDT Jul 29 Newport 2355 PDT Jul 29 * Washington La Push 2335 PDT Jul 29 Neah Bay 2340 PDT Jul 29 less than 1ft Long Beach 2345 PDT Jul 29 less than 1ft Westport 2350 PDT Jul 29 less than 1ft Moclips 2350 PDT Jul 29 9 hrs 0.7- 1.3 ft Port Angeles 0015 PDT Jul 30 less than 1ft Port Townsend 0045 PDT Jul 30 less than 1ft Bellingham 0110 PDT Jul 30 less than 1ft Tacoma 0200 PDT Jul 30 * California Fort Bragg 2350 PDT Jul 29 9 hrs 0.8- 1.4 ft Crescent City 2350 PDT Jul 29 36 hrs 2.9- 5.4 ft Monterey 0015 PDT Jul 30 less than 1ft 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 9 hrs 0.7- 1.3 ft 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 0.8ft Hanasaki Japan 1.1ft Nikolskoe Russia 1714 PDT Jul 29 0.2ft PRELIMINARY EARTHQUAKE PARAMETERS - UPDATED ------------------------------------------- * 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 ------------------- Actions to protect human life and property will vary within tsunami warning areas and within tsunami advisory areas. If you are in a tsunami warning area; * Evacuate inland or to higher ground above and beyond designated tsunami hazard zones or move to an upper floor of a multi-story building depending on your situation. If you are in a tsunami warning or 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 warning and in the advisory areas. If you are in a tsunami warning area; * A tsunami with damaging waves and powerful currents is possible. * Repeated coastal flooding is possible as waves arrive onshore, move inland, and drain back into the ocean. * Strong and unusual waves, currents and inland flooding can drown or injure people and weaken or destroy structures on land and in water. * Water filled with floating or submerged debris that can injure or kill people and weaken or destroy buildings and bridges is possible. * Strong and unusual currents and waves in harbors, marinas, bays, and inlets may be especially destructive. 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. If you are in a tsunami warning or advisory area; * 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. $$