1746 Lima–Callao earthquake 1746 Lima–Callao earthquake The 1746 Lima–Callao earthquake occurred at on 28 October with a moment magnitude of 8.6–8.8 and a maximum Mercalli intensity of XI ("Extreme"). The epicenter was located about north-northwest of the capital Lima, which was almost completely destroyed, and the subsequent tsunami devastated the port city of Callao. It was the deadliest earthquake in Peru’s history prior to the 1970 earthquake. Peru lies above the convergent boundary where the Nazca Plate is subducting beneath the South American Plate at a rate of 61 mm per year. It has been the location for many large and damaging earthquakes
Lima Province divided into 43 districts. Each of them is headed by a mayor, although the Metropolitan Lima Municipal Council ("Municipalidad Metropolitana de Lima"), led by the mayor of Lima, also exercises its authority in these districts. All the districts of Lima province are fused together in a continuous urban area, with the exception of the beach resorts of Ancon and Santa Rosa in the north and Pachacamac, Punta Hermosa, Punta Negra, San Bartolo, Santa Maria del Mar and Pucusana in the south. Lima Province is administered by the Metropolitan Municipality of Lima ("Municipalidad Metropolitana de Lima"), which also administers the city