2025-09-16T22:05:43.12Z40.3241653442383-121.2806701660167.32999992370605manualconfirmedUSGS2.39md1Origin/20250916220755.204214.569681Magnitude/20250916220755.204266.569682USGS5 km NW of Chester, CAregion namenccatalognc75238537contributorID