2026-02-28T08:43:27.27Z38.8226661682129-122.7651672363282.03999996185303manualconfirmedUSGS0.31md1Origin/20260228084519.224228.86005Magnitude/20260228084519.224288.86006USGS4 km W of Cobb, CAregion namenccatalognc75320127contributorID