1985 Mexico City earthquake Ground shaking lasted more than five minutes in places along the coast and parts of Mexico City shook for three minutes, with an average shaking time of 3–4 minutes. It is estimated the movement along the fault was about three meters. The main tremor was foreshadowed by a quake of magnitude 5.2 on 28 May 1985, and was followed by two significant aftershocks: one on 20 September 1985 of magnitude 7.5 lasting thirteen seconds and the third occurring seven months later on 30 April 1986 with magnitude 7.0 lasting ten seconds. However, at least twelve other minor aftershocks were associated
1986–87 Biathlon World Cup retired after the 1986–87 season: 1986–87 Biathlon World Cup The 1986–87 Biathlon World Cup was a multi-race tournament over a season of biathlon, organised by the UIPMB (Union Internationale de Pentathlon Moderne et Biathlon). The season started on 18 December 1986 in Obertauern, Austria, and ended on 15 March 1987 in Lillehammer, Norway. It was the tenth season of the Biathlon World Cup. The first round of the World Cup was originally going to be held in Hochfilzen, Austria, but the races were moved to Obertauern due to a lack of snow. Below is the World Cup calendar for the