2023-12-19T07:47:54.0000Z38.778-122.7801671.94manualconfirmedIRIS0.47Md1Origin/20231219075105.800375.25267Magnitude/20231219075105.80043.25268IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73978031contributorID