Today, 48 years ago, on November 23, 1977 (Calendar, October 13, 1977), a powerful earthquake occurred in the western part of Argentina. At 6:28 a.m. (local time) on November 23, 1977, a strong earthquake occurred in the western part of Argentina near the border of Chile. The U.S. Geological Survey estimated that the earthquake was of a magnitude of seven and four on the Richie earthquake. The earthquake occurred near the city of San Juan in Argentina. After the earthquake, the Argentine government imposed a ban on the city of Coxet, with approximately half of the houses collapsing. The Argentine government's preliminary statistics for this earthquake caused at least 50 people to die and hundreds to be injured. The earthquake mainly extended