2025-12-20T03:59:25.0000Z37.752499-121.9398357.89manualconfirmedIRIS1.73Md1Origin/20251220040237.71949.4471Magnitude/20251220040237.719543.4472IRISCENTRAL CALIFORNIAregion nameNEIC PDEcatalognc75283046contributorID