The Peruvian Instituto Geológico Minero y Metalúrgico (INGEMMET) monitors Coropuna for activity. It uses data such as the composition of hot spring waters and the shape of the volcano as estimated by satellite images, GPS and geodesy, as well as information from five seismic stations. A volcanic hazard map has been published and there are regular status reports published by the Peruvian government. About 90,000 people live in risk areas, and the sites most in danger are towns in the steep southern valleys.