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Book Chapter

Hazards related to lava tubes and caves in the Sierra Chichinautzin monogenetic volcanic field (México)

By
Ramón Espinasa-Pereña
Ramón Espinasa-Pereña
Subdirección de Riesgos Geológicos, Dirección de Investigación, Centro Nacional de Prevención de Desastres, Secretaría de Gobernación, Ciudad de México, México 06600
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Hugo Delgado Granados
Hugo Delgado Granados
Departamento de Vulcanología, Instituto de Geofísica, Universidad Nacional Autónoma de México, México D.F., México
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Published:
November 01, 2013

Hazards in monogenetic volcanic fields include processes and events occurring prior to, during, and after an eruption. This contribution identifies hazards resulting from processes occurring prior to and after a volcanic eruption. From recent experiences in the Chichinautzin volcanic field, hazardous events associated with reports of potential impending eruptions have turned out to be three types of false alarms: fires or gas explosions in sanitary landfills, underground fires, and anthropogenic lava flows. Typically, people who live at monogenetic volcanic fields know that an eruption is a likely event, so when they observe deformation of the ground, heat flow, and explosions, they report these anomalous events to the authorities as volcanic. A methodology should be established to cope with reports of new volcanic activity and to handle the outcome, which could be volcanic or nonvolcanic hazards. The hazards related to events occurring after an eruption include the planning of cities and villages around tube systems, building hazards over lava tubes, pollution due to sewage release in lava tube systems, with consequences to public health and the environment, and endangering threatened species that live in the volcanic systems after the eruptions. Here, we propose a view of volcanic hazards that has not been made before and is distinct from the usual hazards evaluation during eruptions.

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GSA Special Papers

Understanding Open-Vent Volcanism and Related Hazards

William I. Rose
William I. Rose
Geological Engineering & Sciences, Michigan Technological University, Houghton, Michigan 49931, USA
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José Luis Palma
José Luis Palma
Departamento de Ciencias de la Tierra, Universidad de Concepción, Victor Lamas 1290, Concepción, Chile
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Hugo Delgado Granados
Hugo Delgado Granados
Instituto de Geofísica, Universidad Nacional Autónoma de México Circuito Científico, C.U. Coyoacán 04510, México, D.F.
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Nick Varley
Nick Varley
Facultad de Ciencias, Universidad de Colima, Avenida Universidad 333, Colonia Las Víboras, C.P. 28040, Colima, México
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Geological Society of America
Volume
498
ISBN print:
9780813724980
Publication date:
November 01, 2013

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