Editing Almolonga

{{Short description|Stratovolcano in Guatemala}}
{{About|a volcano|the eponymous city|Almolonga, Quetzaltenango}}
{{Infobox mountain
| name = Almolonga volcano
| other_name = (Cerro Quemado)
| photo = Almolonga.jpg
| photo_caption = The rounded hills in the middle, are part of a chain of lava domes of the Almolonga volcanic field
| elevation_m = 3197
| elevation_ref = 
| prominence = 
| location = [[Quetzaltenango (department)|Quetzaltenango]], [[Guatemala]]
| range = [[Sierra Madre, Guatemala|Sierra Madre]]
| map = Guatemala |relief=1
| map_caption = Guatemala
| label_position = right
| coordinates = {{coord|14|48|0|N|91|31|12|W|type:mountain_scale:100000|format=dms|display=inline,title}}
| topo = 
| type = [[Stratovolcano]]
| age = 
| last_eruption = January to June 1818
| first_ascent = 
| easiest_route = 
}}

[[Image:Map guatemala volcanoes.gif|thumb|right|195px|Major Volcanoes of Guatemala]]
The '''Almolonga volcano''', also called "Cerro Quemado" (Burned Mountain) or "La Muela" (The Molar) due to its distinct shape, is an [[andesitic]] [[stratovolcano]] in the south-western department of [[Quetzaltenango (department)|Quetzaltenango]] in [[Guatemala]]. Part of the mountain range of the [[Sierra Madre de Chiapas|Sierra Madre]], the volcano is located near the town of [[Almolonga, Quetzaltenango|Almolonga]], just south of [[Quetzaltenango]], Guatemala's second largest city.

The volcano is set along the [[Zunil fault]] zone and has a central caldera surrounded by several [[dacitic]] and [[rhyolitic]] [[lava dome]]s and formed in a [[back-arc]] volcanic setting, with activity commencing 84,000BP. Almolonga [[stratovolcano]] is the oldest edifice and underwent collapse prior to the caldera forming eruption of [[Lake Atitlan]], the major chronological marker of volcanism in the region. The collapse of the stratovolcano left a [[caldera]] with a diameter of 3,3&nbsp;km and a depth of 350m that was subsequently occupied by lava domes on its northern edge and covered by [[tephra]] layers from numerous volcanoes, both in the Almolonga field and others. Cerro Quemado is the largest (about 2&nbsp;km<sup>3</sup>) and youngest lava dome complex formed by eight vents with viscous lava flows and plugs during four distinct volcanic phases - the first two involving effusion of lava and formation of new domes. Cerro Quemado underwent a [[Volcanic landslide#Flank collapses|flank collapse]] 1,150BP, generating a landslide that went 6&nbsp;km SSW in the [[Llano de Pinal]] valley and occupied an area of 13&nbsp;km<sup>2</sup>, generating a lateral blast that affected the neighbouring [[Volcán Siete Orejas]] volcano as well. A lava dome emerged inside the collapse scar subsequently. 1818 an eruption formed a block lava flow over half a year that travelled 2.5&nbsp;km eastward. Lahars and further explosive activity are potential hazards from this volcano.

==See also==
*[[List of volcanoes in Guatemala]]

==References==
* {{cite gvp|vn=342040|name=Almolonga}}
* {{cite journal|first1=Lee|last1=Siebert|first2=Paul|last2=Kimberly|first3=Carlos R.|last3=Pullinger|title=The voluminous Acajutla debris avalanche from Santa Ana volcano, western El Salvador, and comparison with other Central American edifice-failure events|journal=Geological Society of America Special Papers|date=1 January 2004|issn=0072-1077|pages=5–24|volume=375|doi=10.1130/0-8137-2375-2.5|isbn=9780813723754}}
* {{cite journal|last1=Michael Conway|first1=F.|last2=Vallance|first2=James W.|last3=Rose|first3=William I.|last4=Johns|first4=Glen W.|last5=Paniagua|first5=Sergio|title=Cerro Quemado, Guatemala: the volcanic history and hazards of an exogenous volcanic dome complex|journal=Journal of Volcanology and Geothermal Research|volume=52|issue=4|year=1992|pages=303–323|issn=0377-0273|doi=10.1016/0377-0273(92)90051-E|bibcode=1992JVGR...52..303M }}

{{Central American volcanoes}}
{{Authority control}}

[[Category:Stratovolcanoes of Guatemala]]
[[Category:Subduction volcanoes]]
[[Category:Mountains of Guatemala]]
[[Category:Pleistocene stratovolcanoes]]
[[Category:Holocene stratovolcanoes]]
[[Category:North American 3000 m summits]]


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