2026-07-20T13:36:55.83Z52.116833333333-176.1543.63manualconfirmedUSGS1.72ml1Origin/20260722005456.067624.175565Magnitude/20260722005456.067687.175566USGS42 km NE of Adak, Alaskaregion nameavcatalogav94321493contributorID