New El Misti publication
From: Shan de Silva <desilvas@xxxxxxxxxxxxxxxxxxx>
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We call to your attention to the publication of Geological Society of America Special Paper 484
The 2 ka Eruption of Misti Volcano,
Southern Peru—The Most Recent Plinian
Eruption of Arequipa’s Iconic Volcano
by Christopher J. Harpel, Shanaka de Silva, and Guido Salas
ISBN 978-0-8137-2484-3
Misti volcano’s last Plinian eruption, which happened ca. 2 ka, emplaced voluminous tephra-fall, pyroclastic fl
ow, 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 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, we have also included a
detailed discussion of the paleoclimate conditions that provided the water for such voluminous lahars. We
further delineate the complete eruption sequence for the pyroclastic-fl ow and tephra-fall deposits, providing
a narrative of the eruption progression and dynamics. Finally, we discuss the 2 ka eruption in the context of
hazards from a future Plinian eruption and provide hazards maps for the different phenomena
Contents
Acknowledgments
Abstract
The Most Recent Plinian Eruption of Arequipa’s Iconic Volcano
Chapter 2. Stratigraphy, Sedimentology, and Origin of the 2 ka Upper Flowage Deposits
Chapter 3. The 2 ka Eruption of Misti Volcano, Southern Peru
Chapter 4. Implications for Future Hazards from Eruptions of Misti Volcano
References Cited
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