2023-04-29T19:04:20.0000Z38.729-122.9163336.95manualconfirmedIRIS1.57Md1Origin/20230430002015.359199.204146Magnitude/20230430002015.359249.204147IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73881941contributorID