1952 Tokachi earthquake
1952 CE.
Shown on the map at 41.701°, 144.150°.
The 1952 Tokachi earthquake (Japanese: 1952年十勝沖地震), occurred at 10:22:41 local time on 4 March in the sea near Tokachi District, Hokkaidō, Japan. It had a magnitude of 8.1 on the moment magnitude scale.
Text from the Wikipedia article 1952 Tokachi earthquake, licensed CC BY-SA 4.0.