2023-08-19T00:59:09.0000Z40.235167-121.1511676.34manualconfirmedIRIS2.22Md1Origin/20230821175936.827842.394785Magnitude/20230821175936.827911.394786IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73925801contributorID