2025-07-31T13:16:51.0000Z38.801167-122.780832.73manualconfirmedIRIS0.74Md1Origin/20250731132003.5182.105927Magnitude/20250731132003.518257.105928IRISNORTHERN CALIFORNIAregion nameNEIC PDEcatalognc75217422contributorID