Observatorio Vulcanológico del Sur del IGP (OVS-IGP) and Observatorio Vulcanológico del INGEMMET (OVI) reported that an average of 26 explosions per day occurred at Sabancaya during 4-10 February.
Long-period seismic events were recorded, and hybrid earthquakes were infrequent and of low magnitude.
Although weather conditions sometimes prevented visual observations, gas-and-ash plumes were seen rising as high as 3 km above the crater rim and drifted 30 km S and SW.
MIROVA detected one thermal anomaly.
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)