2026-04-21T10:49:13.39Z34.78266667-95.87556manualconfirmedUSGS1.15ml1Origin/20260422125530.17074.76149Magnitude/20260422125530.170802.76150USGS5 km SSW of Savanna, Oklahomaregion nameokcatalogok2026htutcontributorID