Observatorio Vulcanológico del Sur del IGP (OVS-IGP) and Observatorio Vulcanológico del INGEMMET (OVI) reported that explosions at Sabancaya averaged 13 per day during 10-16 September.
Hybrid earthquakes were infrequent and of low magnitude.
Gas-and-ash plumes rose as high as 2.5 km above the crater rim and drifted 30 km N, NE, and SE.
The MIROVA system detected seven thermal anomalies, and on 12 September the sulfur dioxide gas flux was high at 2,060 tons/day.
The report noted that the public should not approach the crater within a 12-km radius.
Sources: Instituto Geofísico del Perú (IGP),Instituto Geológico Minero y Metalúrgico (INGEMMET)