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GeoHazards, Volume 2, Issue 1 (March 2021) – 1 article

Cover Story (view full-size image): The Popocatépetl volcano is one of the most important landmarks for the more than 40 million people that inhabit the center of Mexico. This view—obtained on the 6th of March 2019, from San Pedro Tlalmimiulpan—is a reminder of how powerful the forces of nature are. Even today, local traditions embrace ancient rituals and practices representing human respect towards the volcano’s destructive potential, associated with a strong spiritual entity. It is well known that volcanic activity can immediately impact vast and dense habited regions. Therefore, the proactive determination of the effects that a volcanic event can have is a valuable approach for mitigating their potential consequences in terms of human lives and economic losses. View this paper
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Article
Towards a Semi-Quantitative Approach for Assessing Evacuation Scenarios in the Context of Popocatépetl Volcano, México—The Case of San Pedro Tlalmimilulpan
GeoHazards 2021, 2(1), 1-16; https://0-doi-org.brum.beds.ac.uk/10.3390/geohazards2010001 - 25 Jan 2021
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Abstract
Volcanic exposure implies multiple hazards for human settlements. The identification of the potential hazards that volcanic activity can entail is a challenge requiring assessing the specific situations that a determined place would face. Popocatépetl, a volcano in the centre of México, represents a [...] Read more.
Volcanic exposure implies multiple hazards for human settlements. The identification of the potential hazards that volcanic activity can entail is a challenge requiring assessing the specific situations that a determined place would face. Popocatépetl, a volcano in the centre of México, represents a significant hazard source, and it is located within a densely populated region with more than 20 million people. Despite the existence of a colour-based volcano alert level system for the current activity of the volcano, it is relevant to assess which local scenarios are more likely depending on numerous variables, namely, related to the distance from the volcano. A semi-quantitative analysis was carried out based on existing hazard maps and considering the probability of occurrence of volcanic explosivity, taking the settlement of San Pedro Tlalmimilulpan as a case study. This analysis led to a hierarchised rank of hazards, providing a basis for analysing multiple scenarios through failure mode and event analysis, failure tree analysis and event tree analysis. This process facilitates the contextualisation of the multiple challenges and potential chains of events that emergency actions, namely, emergency evacuations, would face. The analysis of the critical paths can help to identify critical aspects that could hinder the post-event response. Full article
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