Global vulnerability in the upper course of the Lerma river due to seismic hazard. State of Mexico, Mexico
Main Article Content
Abstract
On September 19th, 2017, a seism, of 7.1 magnitude, took place in Mexico. Due to this seism there are some infraestructural damages in some municipalities in the south of State of Mexico. The event showed the vulnerability and exposure of the population to disasters. In response to this background, the present work aims at analysing the vulnerability to earthquakes in the municipalities of the upper course of Lerma river.
The research is developed using (1) the application of a scoring system to determine the structural vulnerability that values the height, age, type of building among other indicators; (2) the principal components method is used to determine economic and social vulnerability, and (3) the SAATY Hierarchical analysis to unify the three vulnerabilities.
The methodological sequence described allowed to obtain the global vulnerability of the cartography. The final analysis of the cartography showed 1 325 blocks (52.2%) with high global vulnerability, which are characterized by a construction age, higher than 50 years in its majority. Although it was identified that 974 (39.9%) blocks had a standard vulnerability and 142 (5.8%) blocks had a low vulnerability, the last ones were localized in Calimaya municipality.