Overview
- USGS said the earthquake struck off Misawa at 1415 GMT at a depth of about 53 km.
- JMA issued tsunami warnings for Hokkaido, Aomori and Iwate, forecasting waves up to three metres.
- Several tsunami surges of 20–50 cm were recorded at multiple ports, including a wave that reached an Aomori port.
- The shaking reached an upper-6 on Japan’s 1–7 intensity scale in Aomori, with evacuations to shelters, reported injuries and shattered glass.
- East Japan Railway suspended some services, thousands lost power, and utilities reported no abnormalities at regional nuclear plants as authorities warned of aftershocks and possible additional waves.