2025-04-08T07:49:09.75Z37.5880012512207-121.5011672973638.52000045776367manualconfirmedUSGS1.27md1Origin/20250408075136.38927.111948Magnitude/20250408075136.389326.111949USGS18 km SSW of Tracy, CAregion namenccatalognc75162307contributorID