2023-12-15T22:26:56.0000Z38.845001-122.8140031.49manualconfirmedIRIS1.56Md1Origin/20231215223017.872615.3335Magnitude/20231215223017.87267.3336IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc73976741contributorID