2023-07-31T18:13:56.0000Z38.822334-122.8156661.58manualconfirmedIRIS0.38Md1Origin/20230731181723.518544.240741Magnitude/20230731181723.518607.240742IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73918766contributorID