2023-10-06T12:19:41.0000Z40.834499-123.48116326.34manualconfirmedIRIS1.97Md1Origin/20231006122251.309632.1975Magnitude/20231006122251.309685.1976IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73946231contributorID