Tungurahua volcano news & eruption updates:
Tungurahua volcano (Ecuador): increasing earthquake numbers
Sonntag Jun 30, 2013 15:51 | VON: T
IGPEN reports an increase of seismic activity over the past days which might herald a new phase of activity in the near future.
The number of earthquakes associated with fluid movement within the volcano has risen from 10 daily earthquakes on June 20 to 54 earthquakes on 29 June. These so-called long period (LP) earthquakes often reflect an increase in pressure inside the volcano. So far, the earthquakes are small and not felt by people.
In the afternoon of 29 June, mild fumarolic activity was observed in the crater area. Gas sensors installed near the volcano showed no increase in the concentration of SO2 gas, which suggests that the conduit is currently blocked by a plug, which supports the idea of increasing pressure inside the volcano.
Based on the above, IGPEN warns that the pressure build-up could lead to an explosion that destroys the plug, as has happened on other occasions, such as on 16 December last year, and result in new activity of the volcano such as in March and May this year.
Links / Quelle:
Links / Quelle:
Samstag, Mai 25, 2013
Activity continues to be very low (steaming / degassing). [mehr]
Donnerstag, Mai 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. [mehr]
Dienstag, Mai 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. [mehr]
Sonntag, Mai 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. ... [mehr]
Montag, Mai 06, 2013
A gradual increase in eruptive activity is evident. Near continuous ash and steam emissions are interrupted by cannon-like explosions that produce ash plumes rising up to 2-3 km height and produce light ash falls in the areas around the volcano. At night, strombolian activity can be seen from the summit. ... [mehr]