2026-07-20T02:05:05.671Z51.992-174.335175.3manualconfirmedUSGS2.5ml1Origin/20260722191452.002698.181665Magnitude/20260722191452.002759.181666USGS24 km SSW of Atka, Alaskaregion nameakcatalogaka2026ofoohycontributorID