2026-08-20T18:34:53.532Z51.979176.2985manualconfirmedUSGS2.8ml1Origin/20260821220808.882425.462029Magnitude/20260821220808.882484.462030USGS232 km ESE of Attu Station, Alaskaregion nameakcatalogaka2026qmcgdwcontributorID