2025-05-18T03:38:54.84Z37.1591666666667-121.5473333333336.77manualconfirmedUSGS0.86md1Origin/20250520043820.352452.253832Magnitude/20250520043820.352504.253833USGS10 km NE of San Martin, CAregion namenccatalognc75183857contributorID