Tungurahua volcano news & eruption updates:
Tungurahua volcano (Ecuador): continuing unrest, small explosions
Monday Apr 13, 2015 08:32 AM | BY: T
Ash emission at Tungurahua on 10 April
Seismic swarm at Tungurahua 9-10 April (IGPEN)
Intermittent mild explosive activity with ash emissions continues at the volcano.
Drumbeat seismic signals (IGPEN)
An unusual seismic swarm occurred during the night of 9-10 April, following two volcanic earthquakes at 6 km depth in the evening. More than 1300 quakes were recorded until noon of 10 April. What made it unusual was that the seismic events were of the "drumbeat" type, not seen on Tungurahua during the past 16 years, but thought to correspond to the ascent of viscous magma.
Gas emissions have continued to show an increase and the presence of black ash also suggests that a new batch of magma is arriving. These observations make the scenario of a sudden violent explosion in the near future a serious possibility.
Authorities have started to take preventive measures in case of a larger eruption. Road conditions and meeting points in case of evacuations were checked and communicated to the local population. Access restrictions were imposed to potentially dangerous areas, in particular valleys draining from the volcano and the road Penipe Los Pajaros - Banos.
Wednesday, Apr 08, 2015
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. ... [more]
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]