Tungurahua volcano news & eruption updates:
Tungurahua volcano (Ecuador): new ash emissions, eruption warning
Wednesday Apr 08, 2015 09:38 AM | BY: T
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.
Ash emission from Tungurahua on 6 April 2015 (IGPEN)
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.
Starting 03h56 local time on 6 April, a volcanic tremor signal associated with ash emissions occurred in the sectors of Chacauco and Manzano and in the area of Alto Punzupal. A strong smell of sulfur was also noted west of the volcano.
Links / Sources:
Links / Sources:
Wednesday, Mar 04, 2015
A new phase of activity has started at the volcano. So far, surface activity has been low, with minor explosions and steaming, but it is likely that this activity will increase in the near future. ... [more]
Thursday, Sep 25, 2014
Activity at the volcano remains at moderate to high levels, consisting of strombolian and small vulcanian explosions. During the past week, ash plumes have been rising 2-3 km above the volcano.+ ... [more]
Sunday, Aug 31, 2014
A series of small pyroclastic flows occurred yesterday evening, IGEPN reported in its latest special bulletin. ... [more]
Sunday, Aug 24, 2014
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. [more]
Tungurahua volcano (Ecuador) activity update: moderate to strong strombolian explosions from central crater
Tuesday, Aug 19, 2014
The volcano's activity remains moderate with frequent small to medium sized strombolian- to vulcanian-type explosions. ... [more]