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Book Chapter

Computational modeling of the 1991 block and ash flows at Colima Volcano, México

By
Byron Rupp
Byron Rupp
Department of Geology, University at Buffalo, 876 Natural Sciences Complex, Buffalo, New York 14260, USA
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Marcus Bursik
Marcus Bursik
Department of Geology, University at Buffalo, 876 Natural Sciences Complex, Buffalo, New York 14260, USA
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Laercio Namikawa
Laercio Namikawa
Department of Geography, University at Buffalo, 105 Wilkeson Quad, Buffalo, New York 14261, USA
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Amy Webb
Amy Webb
Department of Geology, University at Buffalo, 876 Natural Sciences Complex, Buffalo, New York 14260, USA
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Abani K. Patra
Abani K. Patra
Department of Mechanical and Aerospace Engineering, University at Buffalo, 318 Jarvis Hall, Buffalo, New York 14260-4400, USA
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Ricardo Saucedo
Ricardo Saucedo
Department of Geology, Autonomous University of San Luis Potosí, México
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José Luis Macías
José Luis Macías
Institute of Geophysics, National Autonomous University of México, Ciudad Universitaria, Del. Coyocán, D.F., C.P. 04510, México
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Chris Renschler
Chris Renschler
Department of Geography, University at Buffalo, 105 Wilkeson Quad, Buffalo, New York 14261, USA
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Published:
January 01, 2006

A new numerical code for simulating flows of granular material, TITAN2D, is used to model the Merapi-type block and ash flows resulting from the 1991 eruption of Colima Volcano, México. The 1991 block and ash flows reached distances of up to 4 km from the vent with a total estimated volume of 8 × 105 m3. The block and ash flows were modeled using a digital elevation model (DEM) of the region and compared to field data using a quantitative center-line comparison method. Input parameter values, which dictate flow dynamics, were varied to demonstrate the effect these parameters have on the program output. Analysis showed that the TITAN2D model performs best in replicating the center lines of the 1991 Colima block and ash flows when using an initial volume value representative of a single flow event rather than a total deposit volume.

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Contents

GSA Special Papers

Neogene-Quaternary Continental Margin Volcanism: A perspective from Me´xico

Claus Siebe
Claus Siebe
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José Luis MacíasGerardo
José Luis MacíasGerardo
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J. Aguirre-Díaz
J. Aguirre-Díaz
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Geological Society of America
Volume
402
ISBN print:
9780813724027
Publication date:
January 01, 2006

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