2025-12-20T08:14:15.0000Z38.824665-122.8461692manualconfirmedIRIS0.71Md1Origin/20251220081645.987566.5979Magnitude/20251220081645.987623.5980IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc75283231contributorID