Tungurahua volcano news & eruption updates:
Tungurahua volcano (Ecuador): powerful eruption with pyroclastic flows
Monday Jul 15, 2013 08:38 AM | DOOR: T
Webcam image of the eruption of Tungurahua on 14 July (IGPEN)
A large explosive eruption occurred Sunday (14 July) morning, producing a large ash plume that could be seen from Quito (135 km away) and pyroclastic flows. According to Washington VAAC, the ash reached altitudes of 45,000 ft (13 km). The eruption followed a fast build-up of seismic activity, and likely corresponds to a vulcanian-type explosion, where pressure builds up to eject a solid plug that has tapped the vent. Elevated seismic activity had been noted in phases at the volcano during the previous weeks and while not completely unexpected as a potential scenario, the strength of the explosion was a surprise.
Seismic signal from 14 July showing the build-up to the explosion (RETU station, IGPEN)
The threat and hazard of new pyroclastic flows prompted the government to evacuate people living nearest to the volcano.
The sound of the explosion was confused with gunfire in towns as distant ~50 km from the volcano. Ash from the eruption fell in villages and towns around the volcano.
Koppelingen / Bronnen:
Koppelingen / Bronnen:
- Explosive Eruption at Tungurahua Generating Pyroclastic Flows (Eruption Blog)
Sunday, Jun 30, 2013
IGPEN reports an increase of seismic activity over the past days which might herald a new phase of activity in the near future. ... [meer...]
Saturday, May 25, 2013
Activity continues to be very low (steaming / degassing). [meer...]
Thursday, May 16, 2013
The volcano has calmed down a bit compared to the previous week, which is also apparent on recent seismograms. No recent explosions or ash falls were reported. [meer...]
Tuesday, May 14, 2013
IGPEN reports ongoing strombolian activity with lava ejected to 200 m above the crater, continuing emissions of steam and ash and occasional strong explosions with roaring sounds that produce ash columns up to 3 km high. Ashfall was reported overnight 12-13 May in the sector of Manzano. [meer...]
Sunday, May 12, 2013
Seismic and surface activity remain moderate with ash emissions and intermittent strong strombolian to vulcanian explosions which sometimes are accompanied by ground vibration and strong shock waves that rattle windows and doors in nearby areas. ... [meer...]