2025-12-28T23:47:48.0000Z37.761002-121.941337.53manualconfirmedIRIS1.88Md1Origin/20251228235425.46619.76537Magnitude/20251228235425.466243.76538IRISCENTRAL CALIFORNIAregion nameNEIC PDEcatalognc75287806contributorID