Overview
- The earthquake struck around 10:25 a.m. JST on Jan. 29, according to the Japan Meteorological Agency.
- JMA estimated the magnitude at 4.6 with a focal depth of about 30 kilometers.
- The highest observed intensity was shindo 4 in parts of Minamiboso in southern Chiba.
- Shaking reached shindo 3 in Tateyama, shindo 2 in Katsuura and Kamogawa, and shindo 1 in locations including Ootaki, Toshima, Yokohama, Yokosuka and parts of Shizuoka.
- Initial reports from Japanese media citing JMA data noted no tsunami concern and no immediate reports of significant damage or casualties.