2021-05-04T10:42:58.0000Z39.304833-123.3231674.87manualconfirmedIRIS1.16Md1Origin/20210504183834.024826.369481Magnitude/20210504183834.024874.369482IRISNEAR COAST OF NORTHERN CALIF.region nameNEIC PDEcatalognc73557975contributorID