2021-07-31T21:40:58.0000Z38.377834-120.3564993.54manualconfirmedIRIS2.1Md1Origin/20210731214342.895222.334717Magnitude/20210731214342.895291.334718IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73603556contributorID