2026-07-20T08:31:01.1Z51.5885-177.3388333333311.3manualconfirmedUSGS0.68ml1Origin/20260721234014.564995.175009Magnitude/20260721234014.565058.175010USGS58 km WSW of Adak, Alaskaregion nameavcatalogav94320858contributorID