2025-12-08T14:15:09.960626Z41.011077880859375142.1731109619140644manualconfirmedIAG7.355193431185964mB1Origin/20251208144643.69109.171857Magnitude/20251208144643.691142.171858earthquakeIAGHokkaido, Japan Regionregion nameusp2025yactcontributorID