2026-08-18T09:34:53.754Z57.272-154.88756.4manualconfirmedUSGS1.7ml1Origin/20260818181530.409425.425708Magnitude/20260818181530.409484.425709USGS42 km SW of Karluk, Alaskaregion nameakcatalogaka2026qhseqccontributorID