2025-07-31T03:10:13.74Z38.836498260498-122.81251.85000002384186manualconfirmedUSGS0.7md1Origin/20250731031231.177738.100163Magnitude/20250731031231.177793.100164USGS8 km WNW of Cobb, CAregion namenccatalognc75217247contributorID