Tungurahua volcano (Ecuador): explosions generate small pyroclastic flows

Sun, 31 Aug 2014, 16:32
16:32 PM | BY: T
Sequence of eruptions with pyroclastic flows at Tungurahua (photos G. Viracucha OVT/IG)
Sequence of eruptions with pyroclastic flows at Tungurahua (photos G. Viracucha OVT/IG)
A series of small pyroclastic flows occurred yesterday evening, IGEPN reported in its latest special bulletin.
The eruptions took place between 18:23 and 19:00 local time, and are the first occurrences of pyroclastic flows since the start of the new eruptive phase that started on 27 July.
Fortunately, the flows were small and eruptive activity remains only moderate, as frequent but typically smaller explosions occur and release pressure. It is thought that the volcano is currently in a state of having an open conduit, allowing magma to rise easily to the crater before building up large pressure.
IGPEN mentioned that significant deformation of the upper part of the volcano had been detected recently, indicating that more magma is on its way towards the crater. Hence, similar eruptions are expected to continue for a while.

Previous news

Wed, 27 Aug 2014, 06:00
During 27 August-2 September IG reported that moderate to high eruptive activity continued at Tungurahua including volcanic tremor, explosions, and long-period earthquakes. On most days explosions described as roars and “gunfire” were heard that rattled structures at the observatory and around the volcano. On most days ash plumes rose 1.5-2.5 km (4,900-8,200 ft) a.s.l. above the crater rim and drifted N, W, and NW. ... Read all
Sun, 24 Aug 2014, 14:31
Intermittent explosive activity of moderate size continues at the volcano. An ash emission to flight level 280, i.e. 28,000 ft (8 km) altitude and drifting west was reported today. ... Read all
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