Tungurahua volcano news & eruption updates:
Tungurahua volcano (Ecuador), eruption update: strong ash emissions and explosions
Tuesday Aug 21, 2012 04:46 AM | BY: T
Tungurahua on the afternoon of 19 Aug (photo S. Hidalgo, OVT/IGEPN)
SO2 plume from Tungurahua on 20 Aug (NOAA)
The volcano continues to emit a near constant steam and ash plume rising on average 1.5 km with peaks of up to 4 km above the crater. This activity produces significant ash fall in areas west of the volcano such as Sabañag, Santuario, Hualcanga Santa Anita, Jaloa la Playa, Pillate, Hierbabuena, San Juan and other rural areas of Quero, Cevallos, Tisaleo and Mocha.
Current seismic signal from RETU station (IG)
Individual explosions observed during the night 19-20 Aug eject large incandescent bombs to heights of up to 500 m and to a radial distance of 1.5 km from the rim, mostly towards the NW and W.
Constant turbine and rumbling noises accompany the activity and are heard around the volcano and as far as the towns of Ambato and Riobamba.
A a slight decrease of the tremor signal was noted by IG yesterday. SO2 satellite images show a strong plume drifting west from the volcano.
Links / Sources:
Links / Sources:
Tungurahua volcano (Ecuador), eruption update: strong ash emissions, pyroclastic flows and explosions
Monday, Aug 20, 2012
The eruption continues with constant steam and ash emissions generating a plume 1.5 km above the crater, intermittent cannon-shot-like explosions of moderate strength, which eject blocks of considerable size, and pyroclastic flows reaching 1.5 km distance. During 19 Aug, 4 pyroclastic flows were counted that went towards the areas of Cusúa and La Pirámide. ... [more]
Sunday, Aug 19, 2012
At 19h36 (local time) on 18 August, a possible lava flow from the summit crater and incandescent lava blocks continuously tumbling down were observed using thermal imagery. ... [more]
Friday, Aug 17, 2012
A constant strong tremor signal is visible and the volcano is producing a strong steam plume with intermittent but still small ash explosions. VAAC Washington warns about ash at 20,000 ft, although is not able to identify it on satellite imagery. [more]
Thursday, Aug 16, 2012
Tungurahua continues to produce loud explosions and moderately strong ash venting which cause ashfall on surrounding communities. Tremor is high and seems to be rising. ... [more]
Wednesday, Aug 15, 2012
The Geophysical Institute of Ecuador (IG) has posted a special report summarizing the recently increased activity of Tungurahua volcano: ... [more]