1985 Mexico City earthquake 1985 Mexico City earthquake The 1985 Mexico City earthquake struck in the early morning of 19 September at 07:17:50 (CST) with a moment magnitude of 8.0 and a Mercalli intensity of IX ("Violent"). The event caused serious damage to the Greater Mexico City area and the deaths of at least 5,000 people. The sequence of events included a foreshock of magnitude 5.2 that occurred the prior May, the main shock on 19 September, and two large aftershocks. The first of these occurred on 20 September with a magnitude of 7.5 and the second occurred seven months later on 30 April
1985 Rapel Lake earthquake 1985 Rapel Lake earthquake The 1985 Rapel Lake earthquake occurred on 8 April at with a moment magnitude of 7.5 and a maximum perceived intensity of VII ("Very strong"). The shock was centered southwest of Santiago, Chile, with a focal depth of . The 9 April 1985 earthquake occurred in the same fault area as the 2010 Pichilemu earthquake, and is considered by University of Chile Seismological Service a thrust fault-type interplate earthquake. The earthquake, measured in the Modified Mercalli intensity, reached magnitude VI in Curacaví, La Calera, Los Andes, Peñaflor, San Antonio, Valparaíso, and Viña del Mar; and magnitude