This reporting period was very active in terms of earthquake occurrence; there were six major earthquakes (7.0≤M<8.0) during the second half of october. Earthquake-related deaths were reported in Iran, Nicaragua, Egypt, Colombia, Morocco, Zaire, and the Republic of Georgia.
In the United States, a damaging earthquake occurred in Utah on Septmber 2 and a magnitude 6.8 struck Alaska's Aleutian Islands on September 29.