堪察加外海8.8级地震 太平洋多地发布海啸警报
2025年7月29日23时24分52秒（协调世界时），俄罗斯远东堪察加半岛外海发生8.8级地震，震中在堪察加彼得罗巴甫洛夫斯克东南偏东约119公里处，震源深度35公里；美国地质调查局（USGS）的事件编号为 us6000qw60，这是2011年日本9.0级地震以来全球最大的地震之一。
USGS 说，这次地震是俯冲带界面上的浅层逆冲断层活动引起的，震中一带位于千岛至堪察加海沟沿线。主震之前十天，这一带已有一串地震活动，其中包括7月20日的一次7.4级地震。
地震引发太平洋海啸。美国国家海洋和大气管理局的太平洋海啸预警中心对夏威夷发布海啸警报，对北加州与西阿留申群岛发布警报，对加州其余海岸以及俄勒冈州、华盛顿州海岸发布海啸咨询。夏威夷 Kahului 实测浪高逾1.7米，夏威夷各岛普遍测得逾1米的浪高；美洲西岸没有重大损害报告。
堪察加当地时间此时已是7月30日上午。按本站事件日口径，本稿以地震发生的协调世界时日期7月29日归档。
（来源：美国地质调查局）
Magnitude 8.8 Earthquake off Kamchatka Sends Tsunami Alerts Across the Pacific
At 23:24:52 UTC on July 29, 2025, a magnitude 8.8 earthquake struck off Russia's Kamchatka Peninsula in the Russian Far East, with its epicenter about 119 kilometers east-southeast of Petropavlovsk-Kamchatsky and a depth of 35 kilometers. The U.S. Geological Survey (USGS) catalogued the event as us6000qw60; it was one of the largest earthquakes worldwide since Japan's magnitude 9.0 earthquake in 2011.
The USGS said the earthquake occurred as the result of shallow reverse faulting on the subduction zone interface along the Kuril-Kamchatka Trench. The mainshock was the latest in a sequence of earthquakes offshore of the peninsula that had begun ten days earlier, including a magnitude 7.4 earthquake on July 20.
The earthquake generated a Pacific-wide tsunami. The Pacific Tsunami Warning Center of the National Oceanic and Atmospheric Administration issued a tsunami warning for Hawaii, warnings for Northern California and the western Aleutian Islands, and tsunami advisories for the rest of the California coast and the coasts of Oregon and Washington. Gauges at Kahului, Hawaii, measured waves of more than 1.7 meters, and gauges across the Hawaiian Islands generally recorded more than one meter; no major damage was reported on the U.S. West Coast.
Local time at the epicenter was already the morning of July 30. Under this site's event-date convention, this story is archived under July 29, the Coordinated Universal Time date of the earthquake.
(Source: U.S. Geological Survey)
来源：美国地质调查局
发布：GSM·美国（发布链接）
图片来源：图：美国地质调查局发布的 2025 年堪察加半岛地震烈度图（ShakeMap），图头标注发震时刻为 2025 年 7 月 29 日 23 时 24 分 52 秒（UTC）、震级 8.8 级、震中北纬 52.49 度、东经 160.24 度、深度 35 公里，事件编号 us6000qw60。美国地质调查局，公共领域。 / Photo: Macroseismic intensity map (ShakeMap) of the 2025 Kamchatka Peninsula earthquake published by the U.S. Geological Survey; the header records July 29, 2025, 23:24:52 UTC, M8.8, 52.49N 160.24E, depth 35.0 km, event ID us6000qw60. U.S. Geological Survey, public domain.
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