2021-08-28T13:00:36.0000Z40.472667-121.51852.77manualconfirmedIRIS0.7Md1Origin/20210828154322.12946.626083Magnitude/20210828154322.129513.626084IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73616986contributorID