2023-12-21T14:14:35.0000Z38.834499-122.815171.66manualconfirmedIRIS0.75Md1Origin/20231221141715.786374.42218Magnitude/20231221141715.786428.42219IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73978951contributorID