The first volcano activity report published in 2018 noted ongoing seismic activity involving volcano-tectonic earthquakes. Seismic swarms were observed at Coropuna after the 2001 southern Peru earthquake and were possibly triggered by that earthquake. Observations of deformation of the volcanic edifice have shown that gravitational instability and soil water absorption result in movements of part of the volcano but, as a whole, Coropuna shows no evidence of volcanic deformation.