Group 1 - A strong earthquake of magnitude 8.7 occurred off the eastern coast of the Kamchatka Peninsula, Russia, prompting Japan's Meteorological Agency to issue a tsunami warning for the Pacific coast, with expected wave heights of up to 3 meters in some areas [1] - The tsunami has reached 22 prefectures in Japan, with observed wave heights of 1.3 meters in certain localities [1] - The Chinese Ministry of Foreign Affairs and embassies in Japan have advised Chinese citizens to exercise caution when traveling to Japan, stay away from high-risk coastal areas, and follow disaster preparedness guidelines [1] Group 2 - Emergency contact numbers for Japan include 119 for medical and fire emergencies, 110 for police, and 118 for maritime accidents [2] - The Chinese Ministry of Foreign Affairs provides a 24-hour emergency hotline for consular protection and services [2]

Core Points - A strong earthquake measuring 8.7 on the Richter scale occurred off the eastern coast of the Kamchatka Peninsula in Russia on July 30 [1] - The Japan Meteorological Agency issued emergency tsunami warnings for various prefectures along the Pacific coast, predicting wave heights of up to 3 meters in some areas [1] - Tsunami waves have reached 22 prefectures, with observed heights of 1.3 meters in certain localities [1] Advisory for Chinese Citizens - The Chinese Ministry of Foreign Affairs and embassies in Japan have advised Chinese citizens to exercise caution when traveling to Japan [1] - Chinese nationals in Japan are urged to stay away from coastal areas and high-risk zones, enhance self-protection, and ensure personal safety [1] - Citizens are recommended to closely monitor weather alerts and disaster information, and to prepare for emergency evacuations if they feel an earthquake near the coast [1]

7月30日，俄罗斯堪察加半岛东岸远海发生8.7级强烈地震。受此影响，日本气象厅对太平洋沿岸各 县发布紧急海啸预警，预计部分地区可能出现最高3米的海浪。目前，海啸已抵达22个都道府县，在 局部地区已观测到1.3米高的海啸。 外交部和中国驻日本各使领馆提醒中国公民近期谨慎前往日本旅游，在日中国公民远离海边等 高风险地区，加强自我防护，确保人身安全。 密切关注气象预警和防灾信息，遵照防灾提醒 做好应急避难准备。如在海岸附近感到地震，应立即到高处躲避。如遇紧急情况，请及时拨打 日本紧急求助电话，并联系驻日本使领馆求助。 日本紧急求助电话： 119（急救、消防）、110（警察）、118（海上事故、海难） 日本气象厅中文信息网站： https://www.data.jma.go.jp/multi/index.html?1ang=cn_zs 外交部全球领事保护与服务应急热线（24小时）： +86-10-12308、+86-10-65612308 驻日本大使馆领事保护与协助电话： +81-3-6450-2195 驻大阪总领馆领事保护与协助电话： +81-6-6445-9427 驻福冈总领馆领事保护与协助电话： +81-92- ...

俄罗斯远东堪察加半岛东部海域30日发生8.7级地震，并引发海啸。到31日，余震仍在不断发 生。 受俄堪察加半岛东部海域强烈地震影响，日本气象厅30日对太平洋沿岸多个地区发布"海啸警 报"和"海啸注意预警"，范围包括从北海道到关东、中部、近畿及南部岛屿的多个地区。30日 晚，日本气象厅将所有"海啸警报"下调为"海啸注意预警"。 据央视新闻消息， 当地时间7月31日10时45分（北京时间9时45分）， 日本气象厅对多地发布"海啸 注意预警"（注：级别低于"海啸警报"），称预计将出现最高约1米的海啸。 这些地区包括北海道太 平洋沿岸东部、中部和西部，青森县太平洋沿岸，岩手县，宫城县，福岛县，茨城县等地区。 ...

Core Points - Tsunamis are powerful waves caused by storms or underwater earthquakes, typically triggered by seismic events with a magnitude of 6.5 or higher occurring at depths of less than 50 kilometers [3] - The speed of tsunamis in the ocean can reach approximately 500 to 1,000 kilometers per hour, with distances between successive wave crests potentially reaching 500 to 650 kilometers [3] - Tsunami warnings are categorized into three levels: red warning for wave heights above 3 meters, orange warning for wave heights between 1 to 3 meters, and yellow warning for wave heights between 30 centimeters to 1 meter [3] Group 1 - Tsunamis can cause significant destruction, necessitating timely warnings from relevant authorities to help people prepare and take precautions [3] - Before a tsunami strikes, individuals should move away from beaches and low-lying coastal areas, especially if they feel strong ground shaking, notice sudden water withdrawal, or hear a loud roar [7] - The destructive power of tsunamis is influenced by coastal topography, with steeper areas or "U-shaped" bays potentially amplifying wave heights [8] Group 2 - During a tsunami, vessels in deep water should not head towards the shore or shallow areas, as the waves are less destructive in deep water [9] - Individuals on boats should evacuate immediately and seek higher ground [9] - It is crucial to remain in safe areas until official signals indicate that the tsunami threat has been lifted [8]

俄罗斯远东堪察加半岛东部海域30日发生8.7级地震，并引发海啸。受此次强震影响，北京时间30日晚 上至31日凌晨，南美洲和南太平洋多个国家陆续发布海啸预警，多地观测到海啸波。当地时间30日，智 利国家灾难预防和响应中心发布海啸红色预警，要求沿海地区民众撤离到安全地区，该国海岸线从最北 端至最南端都可能受到影响。智利领土最西端的复活节岛以及其他多个沿海地区对当地民众发布疏散 令。哥伦比亚国家灾害风险管理局30日宣布将海啸预警级别从"红色"下调为"橙色"，但仍维持对该国太 平洋沿岸四个省份的防范措施，包括关闭并疏散所有海滩、滨海步道等高风险区域，并对港口、码头及 航道实施特别交通限制。此外，秘鲁也在当天更新海啸预警，并建议在海啸波抵达前启动疏散程序。秘 鲁应急部门称，海啸已经抵达秘鲁沿岸，浪高在0.78米至1.86米之间。新西兰国家应急管理局于当地时 间31日早上再次发布海啸警报，称海啸波已经抵达新西兰部分海域，请民众远离海滩、港口、河流与河 口，如在陆地则无需撤离。(央视新闻) ...

再次发生强震 俄罗斯媒体30日援引"统一地球物理局"堪察加分部消息报道说，堪察加半岛近海当天再次发生6.5级地 震。 报道说，地震发生在距离位于千岛群岛的北库里尔斯克区178公里处，震源深度为68公里。随后，该区 域又记录到一次5.3级地震。 据"统一地球物理局"消息，堪察加半岛30日发生强震后，已伴随发生100多次5级及以上余震。 堪察加半岛是俄罗斯第二大半岛，位于俄罗斯远东，隶属俄堪察加边疆区。堪察加半岛在环太平洋火山 地震带上，是俄罗斯乃至全球地震活动最活跃的地区之一。 多地发布海啸预警 新华财经北京7月31日电俄罗斯堪察加半岛附近海域30日发生8.7级地震后，该半岛近海当天再次发生6.5 级地震。受此次强震影响，太平洋沿岸多国发布海啸预警或警报，多地观测到海啸波。拥有漫长海岸线 的南美洲国家智利30日发布海啸红色预警，要求沿海地区民众撤离到安全地区。 堪察加半岛地震后，有数人受伤，但未造成重伤。地震触发了美国夏威夷州、日本和智利等太平洋沿岸 地区海啸预警或警报，法属波利尼西亚部分地区被告知要做好应对高达4米海浪的准备。 当地时间30日晚些时候，堪察加边疆区紧急情况部在社交媒体上宣布解除海啸预警。日本气 ...

Core Points - The Kamchatka Peninsula experienced an 8.7 magnitude earthquake on July 30, marking the strongest quake in the region since 1952 [1] - Following the main quake, two additional earthquakes of 6.5 and 5.3 magnitudes occurred, along with over 100 aftershocks of magnitude 5 or higher [1] - Tsunami warnings were issued by multiple countries along the Pacific coast, with observed tsunami waves reaching several meters in height [1] Location and Geological Context - The Kamchatka Peninsula is the second largest peninsula in Russia, located in the Far East and part of the Kamchatka Krai [2] - It is situated on the Pacific Ring of Fire, making it one of the most seismically active regions globally, with over 300 volcanoes, including 28 to 36 active ones [2] - The region's seismic activity is attributed to the collision of the Pacific Plate and the Okhotsk Plate, leading to significant volcanic activity [2] Historical Seismic Activity - The Kamchatka Peninsula has a history of strong earthquakes and tsunamis, including a 9.0 magnitude quake in 1952 that generated a tsunami affecting Hawaii and South America [3] - Other significant quakes occurred in 2006 and 2013, both around 8.0 magnitude, highlighting the area's high risk for large seismic events [3] Earthquake Analysis - Experts indicated that the recent earthquake was anticipated due to the accumulation of seismic potential in the subduction zone since the last major quake in 1952 [5] - The July 30 earthquake likely released decades of accumulated stress along the subduction zone [5] - Previous seismic events in the region were initially thought to relieve pressure, but were later recognized as foreshocks to the recent major quake [5] Impact and Response - The earthquake resulted in minor injuries but no severe casualties, prompting the declaration of a state of emergency in Petropavlovsk-Kamchatsky [6] - Damage included the collapse of a kindergarten wall, but no injuries were reported from this incident [6] - Tsunami waves of 3 to 4 meters were recorded along the Kamchatka coast, affecting areas such as the Kuril Islands and Sakhalin [6] Tsunami Warnings and Global Response - Tsunami alerts were issued in multiple countries, including the United States (Hawaii, California, Alaska), Japan, and Chile, with varying levels of response activated [7][8] - In Japan, tsunami waves reached Hokkaido shortly after the earthquake, leading to a downgrade of initial tsunami warnings later in the day [7] - New Zealand's emergency management agency issued tsunami warnings, with waves already impacting some coastal areas [7]

受堪察加半岛附近海域强震影响，日本气象厅发布海啸预警。目前，日本多地沿岸区域处在海啸警报状 态下，预计部分区域海啸高度最大可达3米。 对于此次地震的原因，专家表示，此次地震发生在太平洋板块与北美板块边界附近，属于典型的浅层逆 断层构造运动。在震源区域，太平洋板块正以年均约77毫米的速度相对于北美板块做西北偏西向运动。 此次地震的震源位置及其运动机制与千岛-堪察加俯冲带沿线板块边界断层的活动特征一致。历史地震 资料显示，过去100年间在震源附近500千米范围内，曾发生过22次7.0级以上地震事件，最大的是1952 年11月4日发生的9.0级地震。全球历史海啸灾害数据库显示，历史上该区域曾发生过33次海啸事件，其 中影响最大的是1952年9.0级地震引发的海啸灾害，在环太平洋区域造成约1万人死亡，最大海啸爬高 18.4米。 北京商报综合报道 当地时间7月30日，堪察加东岸远海海域发生8.7级地震，震源深度为18千米。根据日本气象厅发布的最 新警报，从北海道到和歌山县等17个沿海区域均被纳入海啸警报范围。截至目前，北海道、青森县、茨 城县部分地区已观测到海啸到达，观测到的最大海啸高度约为0.4m。日本气象厅在30日 ...

根据该中心发布的公告，智利整条海岸线从最北端的阿里卡和帕里纳科塔区至最南端的麦哲伦－智利南 极区都可能受到影响。预计海啸波将于当地时间30日11时25分（北京时间30日23时25分）抵达该国领土 最西端复活节岛。 新华财经圣地亚哥7月30日电（记者朱雨博）因俄罗斯堪察加半岛附近海域30日发生强烈地震，智利国 家灾难预防和响应中心当日发布海啸红色预警，要求沿海地区民众撤离到安全地区。 智利总统博里奇当天在社交媒体上发文说，第一波海啸通常不会是破坏性最强的，他呼吁民众按政府指 示保持冷静。 （文章来源：新华社） 俄罗斯堪察加半岛附近海域30日发生8.7级地震，为1952年以来该地区发生的最强地震。受此次强震影 响，太平洋沿岸多国发布海啸预警或海啸警报，多地已观测到海啸波。 ...