2023-09-08T18:58:48.0000Z40.957167-121.56033313.71manualconfirmedIRIS2.1Md1Origin/20230909084321.822291.532389Magnitude/20230909084321.822342.532390IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73934741contributorID