2026-05-17T20:00:12.03Z35.971332550049-120.531997680665.2300000190735manualconfirmedUSGS1md1Origin/20260517200246.784065.53511Magnitude/20260517200246.78413.53512USGS12 km NW of Parkfield, CAregion namenccatalognc75361941contributorID