Largest explosive eruption in historical times in the Andes at Huaynaputina volcano, a.d. 1600, southern Peru

Abstract

Research Article| May 01, 1999 Largest explosive eruption in historical times in the Andes at Huaynaputina volcano, a.d. 1600, southern Peru Jean-Claude Thouret; Jean-Claude Thouret 1IRD and Instituto Geofisico del Perú, Calle Calatrava 216, Urbanización Camino Real, La Molina, Lima 12, Perú Search for other works by this author on: GSW Google Scholar Jasmine Davila; Jasmine Davila 2Instituto Geofísico del Perú, Lima, Perú Search for other works by this author on: GSW Google Scholar Jean-Philippe Eissen Jean-Philippe Eissen 3IRD Centre de Brest BP 70, 29280 Plouzané Cedex, France Search for other works by this author on: GSW Google Scholar Geology (1999) 27 (5): 435–438. https://doi.org/10.1130/0091-7613(1999)027<0435:LEEIHT>2.3.CO;2 Article history first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Jean-Claude Thouret, Jasmine Davila, Jean-Philippe Eissen; Largest explosive eruption in historical times in the Andes at Huaynaputina volcano, a.d. 1600, southern Peru. Geology 1999;; 27 (5): 435–438. doi: https://doi.org/10.1130/0091-7613(1999)027<0435:LEEIHT>2.3.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract The largest explosive eruption (volcanic explosivity index of 6) in historical times in the Andes took place in a.d. 1600 at Huaynaputina volcano in southern Peru. According to chronicles, the eruption began on February 19 with a Plinian phase and lasted until March 6. Repeated tephra falls, pyroclastic flows, and surges devastated an area 70 × 40 km2 west of the vent and affected all of southern Peru, and earthquakes shook the city of Arequipa 75 km away. Eight deposits, totaling 10.2–13.1 km3 in bulk volume, are attributed to this eruption: (1) a widespread, ∼8.1 km3 pumice-fall deposit; (2) channeled ignimbrites (1.6–2 km3) with (3) ground-surge and ash-cloud-surge deposits; (4) widespread co-ignimbrite ash layers; (5) base-surge deposits; (6) unconfined ash-flow deposits; (7) crystal-rich deposits; and (8) late ash-fall and surge deposits. Disruption of a hydrothermal system and hydromagmatic interactions are thought to have fueled the large-volume explosive eruption. Although the event triggered no caldera collapse, ring fractures that cut the vent area point to the onset of a funnel-type caldera collapse. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.