2026-02-27T17:12:45.0000Z35.800167-94.7640manualconfirmedIRIS1.59ML1Origin/20260227181208.853002.80101Magnitude/20260227181208.853061.80102IRISARKANSAS-OKLAHOMA BORDER REGIONregion nameNEIC PDEcatalogok2026ebltcontributorID