Document
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Journal of Volcanology and Geothermal Research
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publication venue for: Numerical simulation of block-and-ash flows for different eruptive scenarios of the Tacaná Volcanic Complex, México-Guatemala
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type: Journal
type: Document
type: Periodical

Consejo Nacional de Ciencia y Tecnología, CONACYT: PN522
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type: BFO_0000020
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type: Grant
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funding vehicle for: Numerical simulation of block-and-ash flows for different eruptive scenarios of the Tacaná Volcanic Complex, México-Guatemala

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RDF description of Numerical simulation of block-and-ash flows for different eruptive scenarios of the Tacaná Volcanic Complex, México-Guatemala - http://orbis.uaslp.mx/vivo/individual/scopus6138
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date: 2026-08-28T03:07:43
publisher: vivo
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Article
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Information Content Entity
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Numerical simulation of block-and-ash flows for different eruptive scenarios of the Tacaná Volcanic Complex, México-Guatemala
type: Information Content Entity
doi: 10.1016/j.jvolgeores.2019.01.026
e iscopus: 2-s2.0-85061311365
origen: scopus
most specific type: Article
freetext keyword: Block-and-ash flows; Eruptive scenarios; Hazard zonation; Numerical modelling; Tacaná Volcanic complex; TITAN2d Air traffic control; Deposits; Friction; Hazards; Maps; Numerical models; Block-and-ash flow; Eruptive scenarios; Hazard zonation; TITAN2d; Volcanic complex; Volcanoes; ash flow; computer simulation; friction; hazard assessment; map; numerical model; spatial distribution; volcanic eruption; zonation; Guatemala [Central America]; Mexico [North America]; Tacana Volcanic Complex
page end: 50
crisid: 6139
type: Continuant
type: Generically Dependent Continuant
has funding vehicle: Consejo Nacional de Ciencia y Tecnología, CONACYT: PN522
related by: authorship_39408
related by: authorship_39409
page start: 36
estado: published
volume: 373
type: Document
date time value: article date 6139
type: Entity
type: Thing
related by: authorship_39410
most specific type: Document
abstract: The Tacaná Volcanic Complex (TVC), shared by México and Guatemala, is considered an active volcano that resumed phreatic explosions in 1949 and 1986. The TVC has recorded at least eight eruptions emplacing block-and-ash flows (BAFs) around the volcanic edifice during the past 42,000 years. The largest event generated the Mixcun deposit some 1950 yr B.P. from San Antonio Volcano, the youngest structure of the complex. Based on the eight mapped BAF deposits of the complex, we perform numerical simulations with the TITAN2d code to recreate the distribution and extent of these deposits. The results were used to prepare the zonation of the TVC based on the surface bed friction angles, which are related to the different morphologies of the volcano. From this zonation and the features of the past BAF deposits, we define three new eruptive impact scenarios (low, medium and high), to perform a hazard assessment of this phenomenon but considering the present morphology of the complex of the four eruptive centers. Next, we ranged the input parameters for each case scenario to analyze the dispersal, thickness and maximum runout of simulated flows. From the numerical simulations, we found that the most influential parameter in the model outputs is the basal friction angle, which varied from 23° to 12°. Then, we merged the eruptive scenarios simulated to construct new hazard maps for the different mass volumes simulated for each scenario. These maps clearly evidenced that the Mexican territory would be seriously affected in case of a renewed explosive activity of the TVC. In fact, even the partial collapse of any of the TVC domes would produce BAFs capable to flow over ~70 communities affecting ca. 20,000 inhabitants, as well as promote the generation of syn-and-post eruptive lahars if they flow into the main rivers that drain the volcano. Therefore, these maps are a great advance to evaluate the destructive potential of the TVC and must serve as the basis for the construction of…
has publication venue: Journal of Volcanology and Geothermal Research
type: Article
related by: authorship_39411
related by: authorship_39412