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Satellite image of Tungurahua volcano by (c) Google Earth View
Satellite image of Tungurahua volcano by (c) Google Earth View
Tungurahua vulkaan
Stratovulkaan 5023 m (16,479 ft)
Ecuador, -1.47°S / -78.44°W
Current status: normal or dormant (1 out of 5)
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Tungurahua vulkaanuitbarstingen:
1534, 1557, 1640(?), 1641, 1644(?), 1646(?), 1757(?), 1773, 1776, 1777(?), 1781(?), 1857, 1885(?), 1886-88, 1900(?), 1916-25, 1944, 2000 - 2016, 2017 (?)
Typical eruption style:
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Tungurahua volcano news & eruption updates:

IG Report on recent increased activity at Tungurahua Volcano in Ecuado

Wednesday Aug 15, 2012 05:19 AM | DOOR: T

Huidige seismische signaal die sterke tremor
Huidige seismische signaal die sterke tremor
The Geophysical Institute of Ecuador (IG) has posted a special report summarizing the recently increased activity of Tungurahua volcano:
"Until last week activity remained at moderate to low levels with small pulses of activity lasting a few days. This quickly changed from Sunday 5 August, when there were two explosions of moderate size.
Friday 10 morning there was an explosion of small magnitude, after which the volcano remained with seismic tremor for more than 5 hours, accompanied by roars of different intensity and emissions of water vapor with moderate to low amounts of ash, accompanied by roars of different intensities.
In the following days, more explosions occurred of low to moderate magnitude and characteristics similar to those already described. As a result of these explosions there were minor ash falls mainly in the western and south-western sectors of the volcano. In the morning of Monday 13 August, light ash falls occurred in the city of Ambato.
From 05h00 (TL) today (14 Aug), there was a substantial increase in seismic tremor, accompanied by intense bangs and roars that in some cases caused the windows vibrate in the Tungurahua Volcano Observatory (OVT), and even slight movements of the soil in Cusúa. Similarly, the steam emission increased, as well as the amount of ash therein. As a result, in the morning, moderate to major ash fall occurred in Cusúa Pillate (Canton Pelileo) and Choglontús (Canton Penipe).
This activity still remained until the time of publishing this report (early 15 Aug GMT). Satellite images this morning (10h45 LT) showed that the ash plumes took a northwestern and westerly direction and is spreading over the provinces of Manabi and Guayas.
The instrumental data also show an increase in the values ​​of monitored parameters (seismic activity, SO2 flow and deformation of the volcanic cone), but we have not found evidence that this activity might increase to levels as those during the eruptions of July and August 2006 in the short term.
Pulses of stronger activity are not ruled out and important activity could occur in the medium and long term.
The technical staff of IG is permanently monitoring this activity and if it displays a greater increase, this will be communicated to the public and the authorities through various means."
Koppelingen / Bronnen:
  • Reporte de la actividad reciente en el Volcán Tungurahua (reporte especial 14 de agosto de 2012, IG)
Vorig nieuws
SO2 pluim van Tungurahua (NOAA)
Tuesday, Aug 14, 2012
An important increase of Tungurahua's activity can be seen on online data. VAAC Washington reports an ash plume at 20,000 ft (6 km) altitude moving WNW, and a strong SO2 plume is visible on satellite imagery. ... [meer...]
Monday, Aug 13, 2012
The volcano continues to emit a steam plume with small amounts of ash, and has occasional small to moderate explosions accompanied by gunshot sounds heard around the volcano. [meer...]
Huidige seismische signaal van Tungurahua met frequente explosies gepaard gaan met tremor (retu station, IG)
Sunday, Aug 12, 2012
Tungurahua's activity remains at moderate levels, and produces explosions with gunshot sounds heard around the volcano. Ash reaches elevations of 5-6 km and ash fell in the Chacauco sector. (IG) [meer...]
Seismische signaal van Tungurahua op 10 augustus (IG)
Saturday, Aug 11, 2012
Tungurahua's activity has the volcano was elevated yesterday and considered as "moderate" by Instituto Geofisico (IG), who noted that there was a change in seismic activity, represented by the presence of tremor signal corresponding to steam and ash emissions and a small explosion. ... [meer...]
Seismische signaal van retu station op 10 aug (IG)
Friday, Aug 10, 2012
The volcano has moderately strong seismic activity with phases of tremor frequently visible, related to fluid movements. No reports of recent explosions. Direct observations have been difficult due to bad weather. [meer...]

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