2026-04-28T19:20:04.81Z38.836833953857-122.812164306641.5manualconfirmedUSGS0.39md1Origin/20260428192210.477651.17683Magnitude/20260428192210.477713.17684USGS8 km WNW of Cobb, CAregion namenccatalognc75353337contributorID