2021-12-15T20:50:59.0000Z39.175333-123.6141673.84manualconfirmedIRIS1.39Md1Origin/20211216202442.807457.486256Magnitude/20211216202442.807507.486257IRISNEAR COAST OF NORTHERN CALIF.region nameNEIC PDEcatalognc73664126contributorID