Core Viewpoint - A tsunami reached Hokkaido, Japan, on July 30, 2023, following a strong earthquake in the eastern region of the Kamchatka Peninsula, Russia, with wave heights observed between 0.3 to 0.4 meters [1] Group 1 - The Japan Meteorological Agency issued tsunami warnings and advisories for multiple regions along the Pacific coast, including Hokkaido, Tohoku, Kanto, Chubu, Kinki, and southern islands [1] - The maximum expected tsunami wave height was revised from 1 meter to 3 meters after the earthquake [1] - Residents in affected areas were urged to evacuate to higher ground and avoid coastal areas [1]

Group 1 - An 8.8 magnitude earthquake occurred off the eastern coast of Kamchatka on July 30, 2025, triggering a tsunami that is expected to impact coastal areas in Shanghai, southern Zhoushan, and eastern Taiwan [1] - The Ministry of Natural Resources has issued a yellow tsunami warning and activated a level two emergency response for Zhejiang Province and Shanghai, requiring continuous updates on tsunami warnings and enhanced monitoring [1][3] - The tsunami waves are predicted to reach Taiwan's coast by 13:30 and the coasts of Zhejiang and Shanghai around 17:00 to 19:00, with maximum wave heights of 60 cm, 40 cm, and 30 cm respectively [3] Group 2 - Tsunami buoy data indicates a 90 cm tsunami wave near the earthquake's epicenter, with Japan and Russia observing waves of 30 to 50 cm [2] - The ongoing typhoon "Zhu Jie Cao" is expected to cause additional storm surges of around 100 cm in Zhejiang and Shanghai, compounding the impact of the tsunami [3]

第一波海啸已于当地时间上午9点55分袭击日本北部北海道县的花崎港，至少四处地区观测到海啸到 达，海浪高度约为30厘米。日本气象厅警告称，海啸浪潮可能反复袭来，且第二波海啸浪潮通常比第一 波更高，撤离应持续到海啸预警解除。 此外，东京湾和大阪也发布了海啸预警，预计海浪高度可达1米。日本放送协会NHK已中断正常节目， 转而播报海啸预警信息，并敦促沿海居民迅速撤离。 东京电力公司宣布，鉴于气象厅向福岛县发布海啸提醒信息，已于上午9点05分暂停福岛第一核电站处 理水排海。 美国西海岸（包括加利福尼亚州、俄勒冈州和华盛顿州等）、阿拉斯加和夏威夷发布海啸警报。夏威夷 檀香山应急管理部要求部分沿海地区疏散，预计海啸将于当地时间周二晚上7:17抵达夏威夷。美国气象 部门还指出，菲律宾、俄罗斯以及雅浦地区、马绍尔群岛等太平洋岛国也可能面临海啸威胁。 2025年7月30日，俄罗斯远东堪察加半岛东部海域发生8.7级地震，震中位于堪察加彼得罗巴甫洛夫斯克 以东136公里处，震源深度为18千米。此次地震是该地区数十年来最强的一次，目前暂无人员伤亡报 告，但萨哈林岛的一个小镇已下令疏散。 地震发生后，俄罗斯远东堪察加地区发布海啸警报，州 ...

Seismic Activity & Geographic Impact - An 8-magnitude earthquake occurred near Russia's Kamchatka Peninsula [1] - Japan's coastal areas are under tsunami warning, with potential wave heights up to 1 meter [1] Potential Economic & Industry Implications - The earthquake and tsunami warning may disrupt maritime activities and supply chains in the region [1] - Industries reliant on coastal infrastructure in affected areas could face operational challenges [1]

Group 1 - The Pacific Tsunami Center has issued a warning that parts of the coasts of Russia and Japan may experience a tsunami [1]

Group 1 - A 7.9 magnitude earthquake occurred in Myanmar on March 28, 2023, with a depth of 30 kilometers, marking the largest earthquake globally this year [1][3] - The earthquake's epicenter was 294 kilometers from the nearest border of China, causing strong tremors in several regions including Yunnan [2][20] - The earthquake was the 17th occurrence of a magnitude six or above globally this year [3] Group 2 - The earthquake caused significant damage to the Ava Bridge in Myanmar [5] - In Thailand, strong tremors were felt nationwide, leading to an emergency state declared in Bangkok [6][12] - The Thai stock exchange suspended trading following the earthquake [15] Group 3 - Residents in Yunnan reported severe shaking, with some describing water from rooftops cascading down like waterfalls [16][18] - Emergency management in Yunnan reported damage to buildings and injuries among residents, with rescue operations underway [20] - The earthquake prompted a tsunami warning, although it was determined that there would be no impact on China's coastline [24]