2026-05-18T17:04:31.928Z39.801143.252335manualconfirmedUSGS4.6mb1Origin/20260518200744.233603.37927Magnitude/20260518200744.233685.379282026-05-18T17:17:46.020128Z2026-05-18T20:07:44.360434ZOff East Coast of Honshu, Japanregion nameOrigin/20260518200744.233603.37927