2025-12-18T00:50:41.855Z39.8616143.128540.367manualconfirmedUSGS4.7mb1Origin/20251218014224.499346.26609341Magnitude/20251218014224.499448.266093422025-12-18T00:56:35.027453Z2025-12-18T01:42:24.558174ZOff East Coast of Honshu, Japanregion nameOrigin/20251218014224.499346.26609341