2025-12-08T21:52:38.594904Z40.93256378173828143.6855773925781210manualconfirmedIAG6.150421338174577mb1Origin/20251209131844.613363.181980Magnitude/20251209131844.613414.181981earthquakeIAGOff East Coast of Honshu, Japanregion nameusp2025yarwcontributorID