2025-12-18T05:37:22.0000Z39.298832-123.2371673.8manualconfirmedIRIS1.52Md1Origin/20251218054034.092369.262035Magnitude/20251218054034.092424.262036IRISNEAR COAST OF NORTHERN CALIF.region nameNEIC PDEcatalognc75281886contributorID