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A Rare Case of Grass Flow Induced by the M8.4 Arequipa Earthquake, June 2001, in the Altiplano of Northern Chile

Published online by Cambridge University Press:  20 January 2017

José A. Naranjo  and
Jorge E. Clavero
José A. Naranjo*
Affiliation:
Servicio Nacional de Geología y Minería-Chile, Avenue Santa María, 0104-Providencia, Santiago, Chile
Jorge E. Clavero
Affiliation:
Servicio Nacional de Geología y Minería-Chile, Avenue Santa María, 0104-Providencia, Santiago, Chile
*
*Corresponding author. Fax: +56 2 7379253. E-mail address:[email protected] (J.A. Naranjo), [email protected] (J.E. Clavero).
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Abstract

On June 23, 2001, an M8.4 earthquake that originated in southern Peru triggered the partial collapse of the Chislluma bofedal (water meadows) in the Altiplano (high-altitude plateau) of northern Chile. The seismic waves evidently produced the liquefaction of the bofedal and caused its partial collapse generating a flow. The flow deposit was mainly made of long-fiber grass and water, with minor amounts of clastic material. It traveled more than 14 km downstream at a peak velocity of 50 km/h. It destroyed the water meadows and killed more than 20 llamas. Slurry flows caused by meadow liquefaction are a previously unrecognized seismic-induced geological hazard for high-altitude plateau areas such as the Altiplano.

Keywords

Long-fiber grass flowLiquefactionOrganic soilInter-plate earthquakeHigh-altitude plateauAltiplanoAndes
Type
Short Paper
Information
Quaternary Research , Volume 64 , Issue 2 , September 2005 , pp. 242 - 248
Copyright
Copyright © University of Washington

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References

Baied, C.A. 1991 Late Quaternary environments and human occupation of the South Central Andes.PhD Dissertation.Department of Anthropology, University of Colorado.Google Scholar
Calder, E. Cole, P. Dade, B. Druitt, T. Hoblitt, R. Huppert, H. Titchie, L. Sparks, S. Young, S. 1999 Mobility of pyroclastic flows and surges at the Soufrière Hills Volcano, Montserrat Geophysical Research Letters 26 5 537–540 CrossRefGoogle Scholar
Castellaro, G. Ullrich, T. Wackwitz, B. Raggi, A. 2004 Botanical composition of alpaca (Lama pacos L.) and llama (Lama glama L.) diets in two seasons of the year on highland ranges of Parinacota province, Chile Agricultura Técnica (Chile) 64 4 353–364 Google Scholar
Earle, L.R. 2000 The development of an unusual peat-accumulating bofedal ecosystem in the Chilean Altiplano.MSc Unpublished Thesis.University of Waterloo,Waterloo, Ontario, Canada. 104 pp.Google Scholar
Earle, L.R. Warner, B.G. Aravena, R. 2003 Rapid development of an unusual peat-accumulating ecosystem in the Chilean Altiplano Quaternary Research 59 2–11 CrossRefGoogle Scholar
Hsü, K.J. 1975 Catastrophic debris streams (Stutzstroms) generated by rockfalls Geological Society of America Bulletin 86 129–140 Google Scholar
Lin, A. 1997 Instantaneous-shaking liquefaction induced by the M7.2 1995 Southern Hyogo Prefecture earthquake, Japan Geology 25 435–438 2.3.CO;2>CrossRefGoogle Scholar
Major, J.J. Iverson, R.M. 1999 Debris-flow deposition: effects of pore-fluid pressure and friction concentrated at flow margins Geological Society of America Bulletin 111 10 1424–1434 Google Scholar
Nishenko, S.P. 1985 Seismic potential for large and great interplate earthquakes along the Chilean and southern Peruvian margins of South America: a quantitative reappraisal Journal of Geophysical Research 90 B5 3589–3615 Google Scholar
Reiche, P. 1937 The Toreva block—"A distinctive landslide type Journal of Geology 45 538–548 Google Scholar
Rodríguez-Marek, A. Edwards, C. 2003 Southern Peru earthquake of 23 June 2001 reconnaissance report Earthquake Spectra165 pp. (Supplement A to Volume 19)Google Scholar
Ruthsatz, B. 1993 Flora and ecological conditions of high Andean peatlands of Chile between 18°00′ (Arica) and 40°30′ (Osorno) south latitude Phytocoenologia 25 2 185–234 Google Scholar
Schwalb, A. Burns, S. Kelts, K. 1999 Holocene environments from stable isotope stratigraphy of ostracods and authigenic carbonate in Chilean Altiplano Lakes Palaeogeography, Palaeoclimatology, Palaeoecology 148 153–168 Google Scholar
Siebert, L. 1984 Large volcanic debris avalanches: characteristics of source areas, deposits, and associated eruptions Journal of Volcanology and Geothermal Research 22 163–197 CrossRefGoogle Scholar
Ui, T. 1983 Volcanic dry avalanche deposits: identifications and comparison with nonvolcanic debris stream deposits Journal of Volcanology and Geothermal Research 18 135–150 Google Scholar
Valero, B. Grosjean, M. Kelts, K. Schreier, H. Messerli, B. 1999 Holocene lacustrine deposition in the Atacama Altiplano: facies model, climate and tectonic forcing Palaeogeography, Palaeoclimatology, Palaeoecology 151 101–125 CrossRefGoogle Scholar
Wilcox, B.P. 1986 Grassland communities and soils on a high elevation grassland of central Peru Phytologia 61 4 231–250 Google Scholar
Wright, A.C.S. 1962 Los bofedales-alkaline cushion-peatland peats of the semi-arid Chilean Altiplano Pacific Viewpoint 4 2 189–193 Google Scholar