2026-05-18T05:12:00.21Z35.944000244141-120.476669311523.8399999141693manualconfirmedUSGS0.56md1Origin/20260518051342.039761.57139Magnitude/20260518051342.039822.57140USGS6 km NW of Parkfield, CAregion namenccatalognc75362081contributorID