2023-12-17T04:40:38.0000Z40.518833-124.43016719.82manualconfirmedIRIS2.21Md1Origin/20231219200928.60583.29074Magnitude/20231219200928.605879.29075IRISNEAR COAST OF NORTHERN CALIF.region nameNEIC PDEcatalognc73977331contributorID