- Acatenango
Infobox Mountain
Name = Acatenango
Photo = Volcán de Fuego and Acatenango.jpg
Caption =Volcán de Fuego (right) and Acatenango (left)
Elevation = 3,976metre s (13,045 ft)
Location =Guatemala
Range = Sierra Madre
Coordinates = coord|14|30|03.6|N|90|52|33.6|W|type:mountain|display=inline,title
Prominence = 1,835metre s (6,020 ft) [http://www.peakbagger.com/peak.aspx?pid=8092 Acatenango on peakbagger.com] ]
Type =Stratovolcano
Age = 200 Kyr
Last eruption = 1972Acatenango is a
stratovolcano inGuatemala , close to the city of Antigua. The volcano has two peaks, "Pico Mayor" (Highest Peak) and "Yepocapa" (3,880 m) which is also known as Tres Hermanas (Three Sisters). Acatenango is joined withVolcán de Fuego and collectively the volcano complex is known as La Horqueta.The Fuego-Acatenango
massif comprises a string of five or morevolcanic vent s along a north-south trend that is perpendicular to that of theCentral America n arc in Guatemala. From north to south known centers of volcanism are Ancient Acatenango, Yepocapa, Pico Mayor de Acatenango, Meseta, and Fuego. Volcanism along the trend stretches back more than 200,000 years. Although many of the centers have been active contemporaneously, there is a general sequence of younger volcanism, from north to south along the trend.This massive volcano complex towers more than 3,500 metres above the
Pacific coastal plain to the south and 2,000 metres above theGuatemalan Highlands to the north. The volcano complex comprises remnants of multiple eruptive centers, which periodically have collapsed to form huge debris avalanches. The largest of these avalanches extended more than 50 kilometres from its source and covered more than 300 square kilometres. The volcano has potential to produce hugedebris avalanche s that could inundate large areas of the Pacific coastal plain. In areas around the volcanoes and downslope toward the coastal plain, more than 100,000 people are potentially at risk from these and other flowage phenomena.The only known historical
eruption s of Acatenango volcano occurred in the 20th century, between 1924 and 1927 from just north of the summit peak (Pico Mayor) and again in December 1972 from the saddle between Yepocapa and Pico Mayor. Thesephreatic explosions generated ballisticvolcanic bomb s that fell near the summit craters and finevolcanic ash that fell up to 25 km away. In prehistoric time, Acatenango has erupted explosively to form widespread fall deposits, hotpyroclastic flow s andlava flows. There have been numerous eruptions during the past 80,000 years from vents along the massif. The most recent explosive eruptions of Acatenango occurred 1,900 years ago (Pico Mayor), 2,300 years ago (Pico Mayor) and about 5,000 years ago (Yepocapa). If such eruptions were to recur, many people and costly infrastructure would be at risk.ee also
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List of volcanoes in Guatemala
*Mountain peaks of North America ources
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* [http://vulcan.wr.usgs.gov/Volcanoes/Guatemala/Publications/OFR01-431/past_events_fuego_acatenango.html Excerpts from: Vallance, et.al., 2001, Volcano Hazards at Fuego and Acatenango, Guatemala: USGS Open-File Report 01-431]
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