Sabancaya (Peru) - Report for 29 November-5 December 2017

Observatorio Vulcanológico del Sur del IGP (OVS-IGP) and Observatorio Vulcanológico del INGEMMET (OVI) reported that explosive activity at Sabancaya slightly decreased compared to the previous week; there was an average of 69 explosions recorded per day during 27 November-3 December.
Seismicity was dominated by long-period events, with signals indicating emissions.
Gas-and-ash plumes rose 3.3 km above the crater rim and drifted 40 km NE and SW.
The MIROVA system detected eight thermal anomalies.
The sulfur dioxide flux was high, at 2,036 tons per day, on 28 November.
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)

Fonte/Source: Global Volcanism Program/Smithsonian Institution


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