Observatorio Vulcanológico del Sur del IGP (OVS-IGP) and Observatorio Vulcanológico del INGEMMET (OVI) reported that explosive activity at Sabancaya was similar to the previous week; there was an average of 19 explosions recorded per day during 12-18 February.
Seismicity was dominated by long-period events, with signals indicating emissions.
Gas-and-ash plumes rose 2.5 km above the crater rim and drifted 30 km NW, SW, and S.
The MIROVA system detected three thermal anomalies.
The sulfur dioxide flux was the highest value yet registered during the eruption, at 9,270 tons per day on 15 February.
The report noted that the public should not to approach the crater within a 12-km radius.
Sources: Instituto Geofísico del Perú (IGP),Instituto Geológico Minero y Metalúrgico (INGEMMET)