2026-08-15T13:40:48.075Z53.732-166.18973.4manualconfirmedUSGS2.3ml1Origin/20260817053841.599153.405461Magnitude/20260817053841.599213.405462USGS27 km SE of Unalaska, Alaskaregion nameakcatalogaka2026qcmicvcontributorID