A magnitude 7.1 earthquake has devastated Japan's southern Kumamoto prefecture, causing deaths at a shopping mall explosion, injuring over 50 people, and forcing the evacuation of around 300,000 residents.

A powerful magnitude 7.1 earthquake struck Japan's Kumamoto prefecture on Tuesday afternoon, causing widespread destruction across the southern region. The temblor resulted in multiple casualties at an Aeon Mall where an explosion occurred following the initial quake, though authorities have not yet confirmed the exact death toll. One hospital reported treating more than 50 injured patients, while additional injuries occurred when the earthquake derailed a high-speed train during operations.

The disaster prompted significant emergency response measures. Prime Minister Sanae Takaichi announced that approximately 3,600 soldiers would be deployed to assist recovery efforts, while around 300,000 people were directed to evacuation centres. The government warned residents to remain alert for potential aftershocks of similar magnitude. A tsunami warning was initially issued but was subsequently lifted, and Japan's Nuclear Regulation Authority confirmed no abnormalities at three nearby nuclear facilities.

Infrastructure across the region sustained considerable damage. Approximately 40,000 homes lost electrical power, and multiple transportation networks were suspended for safety inspections, including Shinkansen bullet trains and local rail services throughout Kyushu. Aso Kumamoto Airport closed its runway with no immediate prospect of reopening. Roads and bridges were ruptured, and portions of Kumamoto Castle's stone walls collapsed during the earthquake.

Major corporations with operations in the affected area, including Sony and Taiwan Semiconductor Manufacturing Company (TSMC), evacuated staff from their facilities, though the extent of any infrastructure damage remained unclear. The earthquake's epicentre was located near the city of Uki, approximately 10 kilometres south of Kumamoto city. This region lies along the Pacific's "Ring of Fire" and experiences frequent seismic activity, accounting for roughly 20 percent of the world's magnitude 6 or stronger earthquakes.