2025-08-21T16:29:43.86Z38.8393325805664-122.8255004882811.64999997615814manualconfirmedUSGS0.58md1Origin/20250821163121.666678.320192Magnitude/20250821163121.666736.320193USGS9 km WNW of Cobb, CAregion namenccatalognc75226782contributorID