2021-09-07T17:17:08.0000Z38.827168-122.8046652.4manualconfirmedIRIS0.87Md1Origin/20210907195418.281429.733601Magnitude/20210907195418.281484.733602IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73621791contributorID