2021-10-29T06:28:21.979Z53.3696-166.719334.59manualconfirmedUSGS4.4mb1Origin/20211029064558.916162.60519Magnitude/20211029064558.916211.60520USGS57 km SSW of Unalaska, Alaskaregion nameuscatalogus7000fpnlcontributorID