2023-10-18T06:02:01.0000Z37.483833-121.5978324.6manualconfirmedIRIS1.97Md1Origin/20231018060509.834465.84899Magnitude/20231018060509.834518.84900IRISCENTRAL CALIFORNIAregion nameNEIC PDEcatalognc73948500contributorID