2025-12-18T10:31:18.0000Z38.834999-122.7991642.24manualconfirmedIRIS0.7Md1Origin/20251218103408.445304.263943Magnitude/20251218103408.445358.263944IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc75282021contributorID