Japan Downgrades Tsunami Alerts After M7.6 Quake Off Aomori

Overview

• The offshore earthquake struck around 23:15 local time about 80 kilometers from Misawa at a depth of roughly 53–54 kilometers, according to USGS and the Japan Meteorological Agency.
• Tsunami waves of up to about 70 centimeters were observed after initial warnings of up to three meters, and authorities later eased or lifted warnings in affected northern coastal areas.
• At least 30 people were reported injured, and tens of thousands evacuated or were advised to evacuate as emergency crews assessed damage and supported shelters.
• Power outages and rail suspensions were reported, while utilities said no irregularities were detected at regional nuclear facilities including Higashidori and Onagawa.
• JMA cautioned that additional strong quakes are possible within a week, urging residents in northern prefectures to remain prepared and follow local instructions.