Tungurahua volcano news & eruption updates:
Tungurahua volcano (Ecuador): increasing activity, 5 km ash column, damage to monitoring equipment
Monday Jul 22, 2013 03:34 AM | BY: T
Strombolian activity from Tungurahua in the night of 19 July (photo P. Ramón - OVT/IGEPN)An increase of activity occurred yesterday. IGPEN recorded 3 strong pulses of volcanic tremor since midnight 20-21 July (local time), which were accompanied by strombolian activity and strong explosions that produced loud roars, heavy gunfire sounds, and vibrations that rattled floors, windows and doors of houses in areas nearby. Some were heard even in the Tungurahua Volcano Observatory (OVT), located 14 km north of the volcano.
The largest explosion yesterday at 14h18 (local time) generated an eruption column of 5 km height moving east.
Although so far there have been no new pyroclastic flows, this could likely happen in the near future. Ash fall occurred in the area of Manzano, Choglontus, Tisaleo, Cevallos and Mapayacu.
In between the explosions, constant strombolian activity with the ejection of incandescent bombs, some of which rolled down the slopes could be seen at night.
The explosions caused considerable damage to some of the monitoring instruments (solar panels, cameras etc.).
Links / Sources:
Links / Sources:
Sunday, Jul 21, 2013
Activity both at the surface and internal remains at moderately high levels. Since the large vent-clearing vulcanian explosion on 14 July, the volcano has been producing strong strombolian activity and near-continuous ash emissions. ... [more]
Friday, Jul 19, 2013
After the strong vulcanian explosion on 14 July, the volcano calmed down first, but resumed activity on 16 July which has been characterized by ash venting and small to moderate explosions and is continuing. ... [more]
Monday, Jul 15, 2013
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. ... [more]
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. ... [more]
Saturday, May 25, 2013
Activity continues to be very low (steaming / degassing). [more]