2026-08-09T19:30:24.61Z37.119667053223-121.533668518076.9899997711182manualconfirmedUSGS1.5md1Origin/20260809193244.226741.331784Magnitude/20260809193244.226802.331785USGS8 km ENE of San Martin, CAregion namenccatalognc75414747contributorID