2026-09-18T13:05:51.219Z35.62133333-98.03756manualconfirmedUSGS1.75ml1Origin/20260918131540.185475.94163Magnitude/20260918131540.185532.94164USGS7 km ENE of Calumet, Oklahomaregion nameokcatalogok2026siascontributorID