Deslizamientos provocados por el terremoto de Cinchona de 2009, Costa Rica
Fecha
2013
Autores
Barrantes, Gustavo
Jiménez Campos, Cristina
Ocón García, María José
Título de la revista
ISSN de la revista
Título del volumen
Editor
Universidad Nacional, Costa Rica.
Resumen
El 8 de enero del 2009 ocurrió un sismo que generó una gran cantidad de deslizamientos, los cuales
fueron la causa de severos daños ambientales y sociales. La nubosidad de la zona solo permitió hacer mapas aproximados del área de afectación. Gracias a la colaboración entre el ICE y la Escuela
de Geografía de la Universidad Nacional, fue posible la elaboración de un inventario detallado de
los deslizamientos ocurridos a partir del análisis de nubes de puntos LiDAR. El resultado final se
presenta en un mapa que muestra el patrón de distribución de los deslizamientos, el cual concuerda
con zonas de fuerte pendiente y amplias capas de regolito.
On January 8, 2009, an earthquake in Costa Rica caused many landslides, resulting in severe environmental and social damage. The cloudiness of the affected area allowed only approximate mapping of area. Collaboration between the Costa Rican Institute of Electricity (ICE) and the School of Geographic Sciences at National University of Costa Rica (UNA) made it possible to take a detailed inventory of the landslides through image analysis via Laser Imaging Detection and Ranging (LiDAR). A comprehensive review of each of the orthophotos and 3D viewing on a Geographic Information System (GIS) allowed digitalizing landslides at 1:1000 scale. The map of the Cinchona earthquake coseismic landslides reveals a pattern of concentration of the landslides to the northeast and north of the epicenter, which is consistent with steep slope, high humidity and deep layers of regolith areas.
On January 8, 2009, an earthquake in Costa Rica caused many landslides, resulting in severe environmental and social damage. The cloudiness of the affected area allowed only approximate mapping of area. Collaboration between the Costa Rican Institute of Electricity (ICE) and the School of Geographic Sciences at National University of Costa Rica (UNA) made it possible to take a detailed inventory of the landslides through image analysis via Laser Imaging Detection and Ranging (LiDAR). A comprehensive review of each of the orthophotos and 3D viewing on a Geographic Information System (GIS) allowed digitalizing landslides at 1:1000 scale. The map of the Cinchona earthquake coseismic landslides reveals a pattern of concentration of the landslides to the northeast and north of the epicenter, which is consistent with steep slope, high humidity and deep layers of regolith areas.
Descripción
Palabras clave
CATÁSTROFES NATURALES, NATURAL DISASTERS, CINCHONA, COSTA RICA, TERREMOTOS, EARTHQUAKES