Tungurahua volcano news & eruption updates:
Tungurahua volcano (Ecuador) activity update: loud strombolian to vulcanian explosions, strong, near constant ash emissions
Monday Dec 17, 2012 11:05 AM | BY: T
Thermal image of Tungurahua on 8am on 17 Dec (image: S. Vallejo - IGEPN)During the night 16-17 Dec, some strong explosions occurred that could be heard as far as Pillaro and Salcedo. Medium to strong levels of tremor and emission signals were recorded on the seismographs. Incandescent blocks were seen ejected about 200 m above the crater and landing on the upper flanks.
During the morning of 17 Dec, frequency and intensity of explosions declined, but a constant steam and ash column was still rising about 2 km above the crater and drifting NE. Loud roars accompanied the emissions, rattling windows in nearby villages. Light ash fall of creamy gray color occurred in Cusua, Ulba and Guadalupe.
IGPEN believes that a slow magma intrusion of moderate volume has started to take place and that more explosions and ash emissions will occur in the near future. Pyroclastic flows, one of the main hazards during this eruptive phase, must be expected any time and cannot be predicted.
Monday, Dec 17, 2012
Following the first explosion on Friday, the volcano has entered a second violent phase of activity on Sunday. Numerous explosions have occurred in the morning of Sunday with ash rising up to 8 km above the crater. Small pyroclastic flows have descended the flanks and partly heavy ash fall has been affecting nearby areas. Combined with rainfall the fresh ash deposits have a dangerous potential to generate lahars in drainages surrounding the volcano. ... [more]
Friday, Dec 14, 2012
A sudden strong ash explosion occurred at Tungurahua volcano in Ecuador today at 14:35 local time. According to local reports, the eruption produced an ash plume rising to 6 km altitude and was visible from Ambato, Riobamba, Pelileo and Patate. The explosion followed an increase in seismicity over the past days. [more]
Friday, Dec 14, 2012
Numerous small volcanic earthquakes have recently been occurring at Tungurahua volcano. According to Earthquake-report, these likely reflect input of new (hotter) volcanic fluids beneath the cone. [more]
Wednesday, Oct 03, 2012
Activity remains low at the volcano which is almost constantly covered in clouds. ... [more]
Monday, Oct 01, 2012
Seismicity at the volcano remains moderate to low. Direct observations of summit activity are hindered by near constant cloud cover, but there are no indications of recent explosions or ash emissions. [more]