2023-12-18T21:17:50.28Z38.3307-122.22973.4manualconfirmedEMSC2.4md1Origin/20231218211933.632358.22323Magnitude/20231218211933.632413.22324EMSCNORTHERN CALIFORNIAregion nameEMSC-RTScatalog1594132contributorID