Vulnerabilidad ante la amenaza sísmica en las edificaciones y viviendas de la comuna 5 de la ciudad de Villavicencio, Meta.

Abstract

This research is on the seismic hazards of homes and buildings in Comuna 5 of Villavicencio City, Colombia. With the ArcGIS multitemporal analysis shows urban growth from 1970 until 2023. Here it finds that 78% were built before seismic codes were applied in Colombia, especially NSR - 98 (1998) and NSR - 10 (2010). From 2000 to 2023, more than half of the remaining percentage had built under the NSR - 98 and under the NSR Code - 10 from 2011 to 2023. Despite having an indicative seismic geotechnical of its urban area soils study since 2002, its municipal authorities have not applied the mandatory use of the code, much except when the current Municipal Territorial Planning (Ley 388 de 1997) approved by the municipal Council through agreement No. 287 of December 29, 2015, did not contemplate the seismic hazard like a natural hazardous event that could occur in Villavicencio despite that both Colombian Geological Survey and Colombian Earthquake Engineering Association indicated before for this city a high seismic Hazard. As a mitigation plan to minimize the vulnerability of the population of Comuna 5 in the event of an earthquake, this investigation recommends to the municipal authority, through the execution of its Municipal Risk Management Office, that it should continue with the work update of the seismic micro zoning with field inspection of the different types of constructions, materials, and construction methods present in Comuna 5, with the support of the Colombian Geographic Institute "Agustín Codazzi" during 2019, it must be restarted with its results applying chapter A. 10 of the NSR - 10, where it is about the update.