Intense volcanic activity at Colima,Mexico

[Tonka]

http://www.eluniversal.com.mx/notas/741956.html

Spanish to English translation

Intense volcanic activity at Colima,Mexico
No risk to the population, says the State Civil Protection System

Volcano's activity in nature is natural and not be afraid (Photo: File)

Colima, Colima | Wednesday February 2, 2011
Quiles Alfredo Cabrera | El Universal
13:08

In recent weeks the Volcan de Colima has shown a strong activity and during the last two days, including today in the morning, there were three strong landslides of volcanic material down the slopes of the "colossus of granite, visible from the city of Colima .

However, and despite this intense activity, the state systems of Civil Protection of Colima and Jalisco have clarified that landslides pose no danger or risk to the population.

The landslides of volcanic material have been observed to the area of the population of Yerbabuena, in the State of Colima, and to Zapotitlan Vadillo, in the State of Jalisco.

Civil Protection said that volcanic activity is normal, once the dome that covers the cone of Colima Volcano continues to grow and has begun to shed material down its slopes.

Civil Protection authorities stressed seen collapses or partial collapse of material from the volcano's summit, mainly to the west (toward Zapotitlan de Vadillo.

"Given the colorful feature of it, causing clouds of dust by detachments from the volcanic dome material, insisting that by the time the activity of the Colossus does not represent a risk to the population living in communities located around the volcano" he said.

It was reported that the volcanic dome observed no changes in height and cover the surface of the crater, which typically remain in the characteristics of the observed on overflights made since March 2010.

The various metrics to continuously take place through the Volcano Observatory of the University of Colima, located on the Nevado de Colima and the analysis of such information by the scientific staff of Jalisco and Colima allow considerations.

The first is that the volcano has not changed in its pattern of activity over the last nine months shows that landslides will continue to accumulated material in the areas south (toward Colima) and north (toward the Nevado de Colima) and detachment of blocks in the western sector.

The ongoing monitoring of other parameters of volcanic activity (seismicity, temperature, deformation and chemical), remain at low levels and show no changes in their behavior.

It also shows an apparent stability of volcanic activity, which is that within the short term it is expected the presence of large-scale explosive events.

The light is kept on standby (yellow), continuing current exclusion zone comprising an average of 7.5 km radius around the crater.

 

[Tonka]

Re: Intense volcanic activity at Colima,Mexico

http://www.am.com.mx/Nota.aspx?ID=453739


Spanish to English translation


A recent image captured by the satellite Earth Observing 1 (EO 1) of NASA, the image showed a plume over the volcano of Colima, and an increase of the lava dome.
The image shows evidence of four types of volcanic activity: the growth of the lava dome, explosive eruptions, the collapse of the flank, and lava flows....

 

[Tonka]

Re: Intense volcanic activity at Colima,Mexico

http://www.yucatan.com.mx/20110120/...e-altura-domo-actual-del-volcan-de-colima.htm
Spanish to English translation

Exceeds 100 feet high dome of the volcano of Colima current


GUADALAJARA, Jalisco (Notimex) .- The dome growing on the volcano of Colima is the most training in the past 10 years, it has already surpassed the 100 meters, he said in Geography and Planning, Carlos Su?rez Placencia.

The researcher at the University of Guadalajara (UdeG) said the fire giant has two types of activity: the effusive (lava emission) and the explosive. Since 1999, both demonstrate alternately.

The first is characterized by the formation of domes and once they reach the crater, spill, while the second, they explode, as occurred in 2005.

"Since 2005, formed domes, exploited and destroyed. In 2008, this dome began to grow, it takes three years and has not been destroyed yet, "Smith recalled Plascencia.

However, he stressed that the phenomenon can be categorized as normal as there are no explosions in the last year there were only small breaths.

The scholar said that the ruptures of the dome are normal, as being above the crater in a vertical and gravity, "breaks off easily." Blocks and rocks that roll down the slope causing clouds of dust, which is not a risk unless someone is approaching the area of the beach area of the volcano.

Placencia Suarez said that the named Volcano of Fire is a very slow eruption of lava. To change to an explosive model, as in 2005, requires a new injection of magma within, "so far, it seems that has not passed it," he said.

In addition, the volcano recorded a very low seismic activity, so far there is no danger. However, he stressed the need to continue the yellow phase and monitoring.

Since in 2013 the Colima Volcano turned 100 years after its last explosion, and the cycle of repetitions of this activity is between 100 and 120 years, the giant is "extremely secure for any changes in their behavior and take a decision, "he added.

Researchers at the University Center for Social Sciences and Humanities perform various actions with the Civil Protection Unit of the State, monitoring seismic variables, "that we have instruments for both inside and outside the giant," he said.

In addition, every five minutes is measured deformation in the volcano and made continuous trips to the area. Since September 2010 the volcano risk map, designed in 1999 and is expected to conclude in March 2011.