2026-10-01T14:13:50.679Z35.86633333-96.684166677.89manualconfirmedUSGS0.61ml1Origin/20261002131242.910502.65342Magnitude/20261002131242.910564.65343USGS10 km WSW of Shamrock, Oklahomaregion nameokcatalogok2026tfwncontributorID