2023-12-21T23:01:02.0000Z37.946667-122.1548316.94manualconfirmedIRIS1.71Md1Origin/20231221230338.42511.45314Magnitude/20231221230338.425163.45315IRISCENTRAL CALIFORNIAregion nameNEIC PDEcatalognc73979191contributorID