2021-12-20T20:26:57.0000Z40.426333-124.21766727.01manualconfirmedIRIS2.28Md1Origin/20211221180006.320679.527692Magnitude/20211221180006.320732.527693IRISNEAR COAST OF NORTHERN CALIF.region nameNEIC PDEcatalognc73666281contributorID