2026-08-04T20:34:07.022Z51.387-176.14132.1manualconfirmedUSGS1.9ml1Origin/20260804230627.301456.293101Magnitude/20260804230627.301515.293102USGS64 km SSE of Adak, Alaskaregion nameakcatalogaka2026pirwfgcontributorID