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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 volcano
Stratovolcano 5023 m (16,479 ft)
Ecuador, -1.47°S / -78.44°W
Current status: normal or dormant (1 out of 5)
Tungurahua webcams / live data | Reports
Tungurahua volcano videos
Tungurahua volcano books
Tungurahua volcano eruptions:
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:
Explosive.
Last earthquakes nearby
Latest satellite images

Sentinel hub | Landsat 8
 

Tungurahua volcano news & eruption updates:

Tungurahua volcano(Ecuador): constant ash emission, explosions and new pyroclastic flows

Wednesday Dec 19, 2012 11:05 AM | BY: T

Thermal imaging of pyroclastic flow deposits generated during the 18 Dec 2012. Source: S. Vallejo-IGEPN
Thermal imaging of pyroclastic flow deposits generated during the 18 Dec 2012. Source: S. Vallejo-IGEPN
Tungurahua continued to produce a sustained ash column rising 2-3 km and intermittent stronger explosions. Several pyroclastic flows occurred yesterday (at 05:00 am, 07:47 and 15:30 local time), the one at 07:47 reaching a length of up to 4 km distance near La Hacienda. The deposits of the flows were reported seen in the gorge and reaching the plain in the area between the Mandur and La Hacienda.
The flow reached ​​grassland and burned the surrounding vegetation. THe other flows were confined to the upper slope of the volcano.
Throughout the day, tremor and explosion signals were visible on the seismic recordings. More than 100 explosions of small to moderate size occurred, and accompanied by strong gunshot noises that rattled windows.

The constantly raising ash column was reaching 2-3 km height and drifting to the northwest in the morning and later to the southwest and west, and later northeast. Ash fall occurred in Rio Verde, Banos, Runtún, Juive, Pondoa and El Manzano.

Based on first analyses of samples of the ash deposit, IGEPN confirms that new magma has risen to the crater and is being erupted since the vent-clearing explosion on 14 Dec. The ash deposit is mostly 1 to 2 mm thick on average, gray and light cream in color and contains plagioclase crystals.
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Links / Sources:
Previous news
Tungurahua volcano seen on 17 Dec (IG)
Tuesday, Dec 18, 2012
During last night and early today explosions and volcanic tremor continued to be recorded. Pulsating lava fountains and strong strombolian-type ejections of incandescent blocks were observed at night with fountains reaching a height of 1 km and bombs landing on the upper cone. In the morning, a small small pyroclastic flow descended through the gorge of La Hacienda. ... [more]
Thermal image of Tungurahua on 8am on 17 Dec (image: S. Vallejo - IGEPN)
Monday, Dec 17, 2012
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. ... [more]
Explosion with pyroclastic flows down at 05:53 (local time) on 16 December. Source M. Yepez (IGEPN)
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]
Explosion on 14 Dec 2012
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]
Seismic signal from RETU station on 14 Dec (IG)
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]

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