Overview
- The government ran a Cabinet-level exercise on Disaster Prevention Day simulating a magnitude-9.1 quake off southern Wakayama with maximum seismic intensity 7 and 10-meter-class tsunamis across parts of Tokai to Kyushu.
- Prime Minister Shigeru Ishiba led an emergency headquarters drill, received damage reports from local governments, and pledged a life-first response with support for evacuations, supplies and rapid restoration of lifelines.
- The Japan Meteorological Agency warned of heavy rain over Hokkaido and Tohoku through September 2, urging strict caution for landslides, flooding and severe thunderstorms, with 24-hour totals up to 120 millimeters in Hokkaido and 100 millimeters in Tohoku.
- Chubu municipalities moved to tighten disaster plans; Shima City added explicit steps for Nankai Trough temporary information including pre-evacuation targets and shelter criteria, while Owase and Minamiise revised command setups and staffing.
- On the 102nd anniversary of the 1923 Kanto earthquake, a major memorial at Tokyo’s Yokoamicho Park drew the Akishino couple and about 200 attendees, and a separate ceremony honored Korean massacre victims as Governor Yuriko Koike again declined to send a message.