2026-08-28T21:30:55.5Z35.999332427979-120.561836242681.7699999809265manualconfirmedUSGS1.16md1Origin/20260828213309.167225.31276Magnitude/20260828213309.167285.31277USGS16 km NW of Parkfield, CAregion namenccatalognc75426517contributorID