2026-07-20T03:42:30.65Z52.277666666667-173.91812.93manualconfirmedUSGS0.8ml1Origin/20260721220824.660835.174449Magnitude/20260721220824.660896.174450USGS21 km ENE of Atka, Alaskaregion nameavcatalogav94320383contributorID