Tungurahua volcano news & eruption updates:

Tungurahua volcano (Ecuador): decreasing activity

After the major eruptions on 1 Feb, the volcano continued to produce frequent (comparably) smaller explosions of strombolian to vulcanian type, sometime causing small pyroclastic flows. Ash falls have been mainly affecting areas in Penipe, south of the volcano. During the past days, activity has been decreasing overall.
IGP reports an earthquake swarm on 10 Feb, when a series of volcanic-tectonic quakes occurred under the northwestern flank of the volcano between Pondoa and Juive Grande. The earthquakes were at depths between 10 and 11 km below the crater and measured up to magnitude of 3.0 on the Richter scale. The largest were widely felt in villages around the volcano.
These seismic events could represent an increase in pressure in the volcano caused by a new batch of magma in its conduit, or, alternatively, it could suggest a relaxation process.
At the moment, the volcano has fewer explosions and less episodes of tremor compared to previous days. The internal (seismic) activity thus is well reflected at the surface. Deformation of the cone shows no acute changes in patterns, while measured SO2 emissions have been declining.

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• Informe Especial del Volcán Tungurahua No. 6 (IGN)

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