Earthquakes “migrated” via faultlines. La Prensa

Earthquakes “migrated” via faultlines 

Five faults identified in Xolotlán were already known, says expert Wilfried Strauch. 

Rezaye M. Álvarez

The scientist of the Nicaraguan Institute of Territorial Studies (INET), Wilfried Strauch, who works together with other national and foreign research related to seismic activity León and Managua living from the experts earthquake of April 10 , said that the five failures Have they produced earthquakes “are dangerous” because they can activate other and generate more earthquakes.

According to Strauch, “already knew of these faults, because they had already warned before earthquakes in that area.”

From April 10 to Monday April 21 at 06:00 am there have been 535 earthquakes , the report of Civil Defence.

Strauch explained that one aspect that has been determined is that failures “are dangerous” because “when (earthquakes) occur, the activity can, say, migrate and then that was what happened. The activity began in failure Momotombo and after earthquakes occurred closer to Managua. ”

Despite being classified as hazardous, Strauch assessed as positive that the faults are in Xolotlán, since “in the lake does not happen a lot, because people do not live the lake. If failure initiates in the lake, is less dangerous than a failure of land near the houses, such as 72, that the fault was on the ground, directly in the center of Managua. ”

Are 2,295 evacuees who were affected by the 6.2 earthquake that occurred on 10 April. Of these, 1,953 are arranged in four shelters authorities.

They recommend further studies

The report issued by the National Bureau for Risk Management, developed in conjunction with Humboldt Center on seismic activity reported-recommended “establishing a monitoring station with all the necessary equipment for monitoring Apoyeque volcano and other volcanoes.” addition emphasize the need to “significantly increase the research to generate more knowledge about our seismic risk.” Finally, they consider necessary to maintain and develop lines of communication and exchange with “governments, agencies and experts from other countries to advance the analysis and significant incorporation of technical and technological capabilities to expand preventive, climate, seismic and volcanic, consistent with a country of high vulnerability and risk, and Nicaragua “surveillance.

When an earthquake of great magnitude caused by a fault in the lake, the seismic waves reach land, but with less intensity, because the distance attenuates the wave.

VOLCANIC ACTIVITY DISCARDED

On the possibility of a volcanic eruption product of seismic activity either Momotombo, or Momotombito Apoyeque occurs, is unlikely.

According to Strauch, if “the volcano is now in a stage just before eruption and an earthquake occurs, it is more likely that the eruption begins shortly after the earthquake; if the volcano is not in that state, nothing happens. ”

However, the government spokeswoman, Rosario Murillo said Monday it will continue to investigate, and it will join the team of experts volcanologists El Salvador.

Murillo said that measurements are made at different points near the Momotombo volcano and around the Apoyeque.

According to the results of the studies, the flow of carbon dioxide diffuse are in normal range for volcanic areas, said Murillo.

The delegation of Salvadorans specialists, reports half of the country, is headed by volcanologist Eduardo Gutiérrez, the Ministry of Environment and Natural Resources (MARN), Benancio Henríquez and Francisco Barahona, University of El Salvador (UES).

DATA nationwide

According to the latest report issued Monday by Civil Defense, an account of the damage and subsequent actions are performed nationwide earthquake of April 10.

In total, 231 Civil Defense records collapsed homes and damaged 408 2000. To remedy this situation, so far have provided a series of humanitarian supplies, including 8000 330 sheets of zinc and 11 000 550 bags of cement.

Parallel to this will have for building materials for 26 houses in Mateare; These materials consist of bricks, iron and cement bags.

We have also distributed 11 thousand 500 sleeping mats, 250 one thousand blankets, 500 hygiene kits and 300 food packages.

For all shipments of humanitarian supplies, construction materials and disposal, the Army has employed one thousand 260 troops, 96 121 light vehicles and heavy vehicles.

They are also working on updating and improving contingency plans for volcanic eruptions Momotombo, San Cristóbal and Apoyeque.

This report issued, Civil Defense completes stage damage assessment and needs analysis in all municipalities.

via Earthquakes “migrated” via faultlines. La Prensa.

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