2023-09-08T04:32:00.0000Z38.812-122.8274991.75manualconfirmedIRIS1.89Md1Origin/20230908043505.396104.523249Magnitude/20230908043505.396162.523250IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73934486contributorID