Overview
- The USGS reported a magnitude 7.6 offshore earthquake with an epicenter north of Japan.
- The Japan Meteorological Agency issued a tsunami warning and flagged Iwate, Aomori and parts of Hokkaido as high-risk areas.
- NHK reported the first wave was expected around 23:40 local time in northern port zones from Aomori to Iwate.
- Strong shaking was felt across a wide area, including Tokyo, according to local media reports.
- A magnitude 5.5 aftershock was recorded about 18 minutes after the main quake, the USGS said.