2021-09-04T19:03:13.0000Z38.834499-122.809830.86manualconfirmedIRIS0.97Md1Origin/20210904190553.536314.703996Magnitude/20210904190553.536379.703997IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73620131contributorID