Peru's Misti volcano: Understanding the past to assess future hazards

December 29, 2011

Boulder, CO, USA - Misti volcano's last Plinian eruption happened ca. 2 ka, emplacing voluminous tephra-fall, pyroclastic-flow, and lahar deposits. Arequipa, located at the foot of the volcano, has a population of over 800,000 people and growing. Misti will erupt explosively again, and it is important to understand the past Plinian eruption.

This GSA Special Paper first provides a detailed description and analysis of the lahar deposits from the 2 ka eruption and the flows that emplaced them.

Because Misti is located in an arid region, the authors have also included a detailed discussion of the paleoclimate conditions that provided the water for voluminous mudflows. The authors further delineate the complete eruption sequence for the pyroclastic-flow and tephra-fall deposits, providing a narrative of the eruption progression and dynamics.

Finally, the book discusses the 2 ka eruption in the context of hazards from a future Plinian eruption and provides hazards maps for the different phenomena.
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Individual copies of the volume may be purchased through the Geological Society of America online bookstore, http://www.geosociety.org/bookstore/default.asp?oID=0&catID=9&pID=SPE484, or by contacting GSA Sales and Service, gsaservice@geosociety.org.

Book editors of earth science journals/publications may request a review copy by contacting April Leo, aleo@geosociety.org.

The 2 ka Eruption of Misti Volcano, Southern Peru--The Most Recent Plinian Eruption of Arequipa's Iconic Volcano
Christopher J. Harpel, Shanaka de Silva, and Guido Salas (editors)
Geological Society of America Special Paper 484
SPE484, 70 p., $40.00; Member price $32.00
ISBN 978-0-8137-2484-3

www.geosociety.org

Geological Society of America

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