Earth Watch Report - Volcanic Activity
| 15.07.2013 | Volcano Activity | Ecuador | Cordillera Oriental, [Tungurahua volcano] |  |  |
Volcano Activity in Ecuador on Monday, 01 July, 2013 at 02:48 (02:48 AM) UTC.
| Description | |
| IGPEN reports an increase of seismic activity over the past days which might herald a new phase of activity in the near future. The number of earthquakes associated with fluid movement within the volcano has risen from 10 daily earthquakes on June 20 to 54 earthquakes on 29 June. These so-called long period (LP) earthquakes often reflect an increase in pressure inside the volcano. So far, the earthquakes are small and not felt by people. In the afternoon of 29 June, mild fumarolic activity was observed in the crater area. Gas sensors installed near the volcano showed no increase in the concentration of SO2 gas, which suggests that the conduit is currently blocked by a plug, which supports the idea of increasing pressure inside the volcano. Based on the above, IGPEN warns that the pressure build-up could lead to an explosion that destroys the plug, as has happened on other occasions, such as on 16 December last year, and result in new activity of the volcano such as in March and May this year. |
Volcano Activity in Ecuador on Monday, 01 July, 2013 at 02:48 (02:48 AM) UTC.
Back| Updated: | Sunday, 14 July, 2013 at 17:44 UTC |
| Description | |
| Ecuador’s ever-active Tungurahua had a significant explosive eruption this morning (July 14), producing an impressive ash plume that could be spotted in Quito (135 km away) and pyroclastic flows. The report from the Washington VAAC has ash as high as FL450 (~13 km / 45,000 feet). The eruption was also caught on weather satellite images of the area (see above), spreading to the northeast of the volcano. The pyroclastic flow threat has prompted the Ecuadoran government to evacuate people living nearest to the volcano as well. The explosion was confused with gunfire in towns as distant ~50 km from the volcano and ash from the eruption was falling on towns around Tungurahua as well and a sharp increase in volcanic material in streams and rivers leading from the volcano has also been noticed — mainly ash and gravel, likely tephra (volcanic debris from an explosive eruption). You can see the explosion occur on this two loops of NOAA/NESDIS satellite imagery, one showing the IR loop (animated GIF), with the heat from the ash clearly visible as the explosion happens (top below) and the visible ash cloud (animated GIF – or see still image below) spreading mainly to the north but dispersing quickly after then initial explosion . Both of these loops suggest that the explosion was somewhat of an ephemeral event likely related to the destruction of a lava dome or plug. | |
Volcano Activity in Ecuador on Monday, 01 July, 2013 at 02:48 (02:48 AM) UTC.
Back| Updated: | Monday, 15 July, 2013 at 03:18 UTC |
| Description | |
| Authorities in Ecuador say at least 200 people have been evacuated from near the Tungurahua volcano after it spewed an ash plume more than 5 kilometres (3.1 miles) into the air. The regional director of the National Risk Management Secretariat, Lourdes Mayorga, says the explosion produced ash and pyroclastic flows, and could be felt hundreds of kilometres away. She said Sunday that at least 200 people were evacuated from the zones of Cusua, Chacauco and Juive near the volcano. Authorities declared an orange alert, which allows officials to acquire the goods and carry out works to provide humanitarian assistance if needed. Tungurahua has been active for more than 13 years. The 16,480-foot (5,023-meter) volcano is located about 84 miles (135 kilometres) southeast of the capital, Quito. | |
Volcano Activity in Ecuador on Monday, 01 July, 2013 at 02:48 (02:48 AM) UTC.
Back| Updated: | Monday, 15 July, 2013 at 16:21 UTC |
| Description | |
| The authorities of Ecuador began evacuating people from villages located near the country’s Tungurahua volcano, local media reported on Sunday, July 14. Ecuador’s Tungurahua exploded on Sunday spewing stones, gases and ash from its crater up to over five kilometers (three miles) in the air. No casualties were reported as a result of the explosion. The country’s emergencies ministry reported that some 200 people were evacuated from nearby villages and taken to safer localities, where they were provided with shelter and humanitarian assistance. The volcano, located 135 kilometres (84 miles) southeast of the capital Quito, has been active since 1999. The volcano went through a period of high activity in December last year and in March this year, but no eruption resulted. | |
The Telegraph
Tungurahua volcano in Ecuador spews huge ash plume forcing hundreds from their homes
Authorities in Ecuador say at least 200 people have been evacuated from near the Tungurahua volcano after it spewed an ash plume more than 5 kilometres (3.1 miles) into the air.
A man walks on rocks and ashes spewed by the Tungurahua volcano in the outskirts of Cusua, Tungurahua province, Ecuador Photo: AP
The
regional director of the National Risk Management Secretariat, Lourdes
Mayorga, says the explosion produced ash and pyroclastic flows, and
could be felt hundreds of kilometres away.
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....Read More Here
Lorry-sized boulders spew from Ecuador volcano as 300 people flee for their lives
By Daily Mail ReporterSchools were closed for a third straight day as ash showered down on a dozen towns in the sparsely populated area surrounding the 16,480-foot volcano.
Thundering explosions could be heard miles from Tungurahua, which is on the Andes cordillera 84 miles southeast of Ecuador's capital, Quito.
Fireball: The Tungurahua Volcano spews ash and stones during an eruption which forced 300 people to flee from their homes
Melting point: A huge ash cloud is formed after the volcano began hurling lorry-sized boulders from its tip
'The smallest blocks are that size of an automobile while the biggest reach the size of a truck, which cause impact craters up to 10 meters (33 feet) wide as they hit the flanks,' the scientist, Silvana Hidalgo, told The Associated Press.
Read More Here
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