日本九州岛南部熊本县于7月28日下午4时27分左右发生7.1级地震，震源深度为10公里[3][6]。地震的最大震感达到震度7级[6]，这是日本自2024年1月能登半岛地震以来首次观测到该强度的地震[6]。日本气象厅随后发布了海啸预警，警告部分地区海浪高度可能达到约1米[3][6]，海啸威胁已随后解除[9][12]。
地震引发了人员伤亡和财产损失。至少50人受伤住院[7][11][12]，多人被困在受损的购物中心内[9][10]。地震导致约4.8万户家庭和设施停电[6][9][12]，并引发了多地火灾和基础设施受损[9][12]。地震发生约45分钟后又发生6.1级地震，随后还发生了5.0级地震[6]。超过15万人被要求撤离到避难所[7]。
地震对交通运输造成重大影响。JR九州暂停了全部列车服务，包括新干线高速列车[5][11]。熊本机场跑道也随之关闭[11]。日本首相高市早苗随即指示相关部门全力开展救援工作，并部署了自卫队、消防部门和海岸警卫队等应急响应人员[7]。日本气象厅警告可能发生强余震[7]。附近的三座核电站未检测到异常[9][12]。
A powerful 7.1 magnitude earthquake struck the southwestern part of Kyushu Island near Kumamoto Prefecture on the afternoon of July 28, with a focal depth of 10 kilometers [1][3]. The temblor achieved a maximum seismic intensity of 7 on the Japanese scale [6][8], marking the first such intensity earthquake recorded in Japan since the January 2024 Noto Peninsula earthquake [6].
The disaster triggered immediate emergency responses and widespread disruption across the region. The Japan Meteorological Agency issued tsunami warnings predicting wave heights of up to one meter [3][6]. Over 150,000 people were ordered to evacuate to shelters [7], while more than 45,000 households lost power [6][9]. A shopping center suffered collapse, with multiple people reported trapped inside [9][10], and fires broke out in several areas [9][12]. Japan's Prime Minister Takakichi Takaichi directed all government agencies to prioritize rescue and relief operations [8]. According to reports, at least 50 people were hospitalized [7][9][11].
The earthquake triggered a cascade of powerful aftershocks. A 6.1 magnitude tremor struck approximately 45 minutes after the initial quake [5], followed by a 5.0 magnitude earthquake [6], with nine additional aftershocks ranging between 3.3 and 4.5 magnitude [5]. Transportation infrastructure suffered significant damage: JR Kyushu suspended all rail services including the Shinkansen high-speed trains [5][11], and Kumamoto Airport closed its runway [11]. A semiconductor manufacturing facility operated by TSMC evacuated its employees [11]. Nuclear plants in the vicinity—including Sendai and Genkai stations—reported no abnormalities [5][9][12].