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El municipio de San Andres Tuxtla se ubica en la costa del Golfo de Mexico (Veracruz) y por sus condiciones climatologicas y topograficas es afectado por distintos fenomenos naturales, principalmente del tipo hidrometeorologico. Tambien, al estar ubicado dentro de Campo Volcanico de Los Tuxtlas, existe la amenaza latente del Volcan San Martin, el cual registro su ultima erupcion en el ano de 1793. Adicionalmente, el municipio tiene alta poblacion y altos niveles de marginal lo que incrementa la vulnerabilidad. Desde esta perspectiva, el siguiente trabajo propone la utilizacion de dos metodologias para obtener los niveles de vulnerabilidad y riesgo, las cuales utilizan metodos cuantitativos, facilmente replicables y con metodos claros, lo que permitira su empleo en trabajos futuros. El estudio se aplico en tres localidades: Nacimiento de Xogapan, Tonalapan y Texcaltitan, obteniendo como resultado altos niveles de vulnerabilidad y peligro, por lo que se consideran necesarias medidas de mitigacion. Palabras clave: Vulnerabilidad; peligro; riesgo; fenomenos naturales; Los Tuxtlas Abstract  The municipality of San Andres Tuxtla is located on the coast of the Gulf of Mexico (Veracruz) and due to its climatologi­cal and topographic conditions it is affected by different natural phenomena, mainly of hydrometeorological origin. Additionally, due to its location within the Los Tuxtlas Volcanic Field there is the latent threat of the San Mar­tin Volcano, which recorded its last eruption in the year of 1793. Further, the municipality has a high population and high levels of mar­gination, which increases the vulnerability. From this perspective, the following work pro­poses the use of two methodologies to obtain levels of vulnerability and risk, using quantita­tive methods easily replicable and with a clear methodology, which allows their use in futu­re work. The study was applied to three loca­tions: Nacimiento de Xogapan, Tonalapan and Texcaltitan, obtaining as a result high levels of vulnerability and hazard, for which mitigation measures are considered necessary. Keywords: Vulnerability; hazard; risk; Natu­ral Phenomena; Los Tuxtlas

Vulnerabilidad socioambiental ante fenómenos naturales en las localidades de Texcaltitán, Tonalapan y Nacimiento de Xogapan