Volcanos

Roundup of Global Volcanic Activity

Tungurahua (Ecuador): The volcano entered a phase of increasing activity again. New ash emissions, tremor episodes and increased SO2 output occurred during the past days and suggest that a new pulse of magma is on its way. This could lead to a new, possibly intense eruptive phase in the near future. Because the last significant activity occurred more than 6 months ago, the upper conduit of the volcano is likely blocked by a plug under which pressurized gasses accumulate. This in turn could lead to a sudden, strong vent-clearing explosion, a potentially very dangerous eruption. The first signs of new unrest at Tungurahua had already been noted in February this year, when seismicity increased and a small eruption occurred on 19 Feb. The earthquakes had afterwards decreased again, but a new pulse started 3 days ago.

Kliuchevskoi (Kamchatka): KVERT lowered the volcano's alert level back to green yesterday - the most recent phase of mild activity appears to have ended.