2026-08-20T08:53:55.266Z53.4511-163.500435manualconfirmedUSGS2.6ml1Origin/20260821073804.577652.267151Magnitude/20260821073804.577728.2671522026-08-21T02:35:02.45959Z2026-08-21T07:38:06.628201ZUnimak Island Region, Alaskaregion nameOrigin/20260821073804.577652.267151