Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8041
AuthorsBonasia, R.* 
Costa, A.* 
Folch, A.* 
Macedonio, G.* 
Capra, L.* 
TitleNumerical simulation of tephra transport and deposition of the 1982 El Chichón eruption and implications for hazard assessment
Issue Date2012
Series/Report no./231-232 (2012)
DOI10.1016/j.jvolgeores.2012.04.006
URIhttp://hdl.handle.net/2122/8041
KeywordsFallout deposit
1982 El Chichón eruption
HAZMAP
FALL3D
Hazard assessment
Subject Classification04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk 
AbstractEl Chichón volcano, Chiapas, Mexico, erupted explosively on March 29th, 1982, after a repose period of about 550 years. Amongst ten eruptive episodes documented between March 29th and April 4th, only the three that occurred on March 29th and April 4th produced significant pyroclastic tephra deposits. Here we use analytical (HAZMAP) and numerical (FALL3D) tephra transport models to reconstruct the deposits and the atmospheric plume dispersal associated with the three main fallout units of the 1982 eruption. On the basis of such a reconstruction, we produce hazard maps of tephra fallout associated to a Plinian eruption and discuss the implications of such a severe eruption scenario.
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