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Tremor amplitude at Chaparrastique volcano over the past weeks (MARN)
Wednesday, Jul 23, 2014
The volcano continues to produce important gas emissions as well as occasional small ash explosions. Tremor remains at very high levels (20 times above normal), caused by internal fluid movements. The likelihood of new eruptive activity in the near to medium future remains elevated. [more]
Ash emissions from Chaparrastique volcano yesterday (MARN)
Monday, Jul 14, 2014
Chaparrastique volcano has started to produce small explosions and significant ash emissions. An increase of the ongoing eruption could occur any time and is expected to occur either from the summit vent or from the northern flank (because earthquakes have been clustered under this part of the volcano during the past months). ... [more]
Tectonic setting of El Salvador (from: Agostini et al, 2006)
Tectonic setting of El Salvador (from: Agostini et al, 2006)
Source:
Agostini et al (2006) "Tectonic and magmatic evolution of the active volcanic front in El Salvador: insight into the Berlín and Ahuachapán geothermal area", Geothermics, v.35, pp. 368–408

Volcanoes of El Salvador (20 volcanoes)

Apaneca Range | Cerro Singüil | Izalco | Santa Ana | Coatepeque | San Diego | San Salvador | Cerro Cinotepeque | Guazapa | Ilopango | San Vicente | Apastepeque | Taburete | Tecapa | Usulután | Chinameca | San Miguel | Laguna Aramuaca | Conchagua | Conchagüita
There are 20 potentially active volcanoes in El Salvador. They belong to the circum-pacific Ring of Fire, and are related to the oblique subduction of the oceanic Cocos Plate under the Caribbean tectonic plate.
Apaneca Range
(stratovolcanoes)
Apaneca Range (Cuyanausul Range) is a group of E-W trending stratovolcanoes and geothermal areas located in western El Salvador, between the Santa Ana complex and the Guatemala border, about 6 km SE of Ahuachapin town. The volcanoes are basaltic-to-andesitic and Pleistocene and H... [more]

Cerro Singüil
(cinder cones)
Cerro Singüil (also known as El Cerron) is a large scoria cone SE of Volcán Chingo in the interior valley of El Salvador near the Guatemalan border. The volcano has a well-preserved summit crater and belongs to a young volcanic field of cinder cones and explosion craters. [more]

Izalco
(stratovolcano)
Izalco volcano, El Salvador (image courtesy: Angela Rucker, USAID)Izalco volcano was born in 1770 and is the youngest volcano in El Slavador. It formed on the southern flank of Santa Ana volcano located 45 km NW of San Salvador city.
Frequent strombolian eruptions and sometimes lava flows have built a largely unvegetated cone 650 m high w... [more]

Santa Ana
(stratovolcano)
Santa Ana (also known as Ilamatepec) volcano is a stratovolcano about 45 km west of San Salvador city. It is El Salvador's highest volcano and one of its most active.
The broad summit of Santa Ana has a beautiful array of concentric craters with crescent-shaped rims.
more]

Coatepeque
(caldera)
Coatepeque volcano is a large 7 x 10 km wide caldera 50 km west of San Salvador city. The caldera is elongated in SE-NW direction, with walls rising up to 800 m above the floor in its southwestern part. An up to 120 m deep and 5 km diameter lake occupies the eastern part of the c... [more]

San Diego
(volcanic field)
San Diego volcano is a young basaltic volcanic field near Lake Güija at the border between El Salvador and Guatemala. It contains cinder cones and unvegetated, fresh-looking lava flows.
The lava flows from San Diego volcanic field have created a natural dam to form Lake Güi... [more]

San Salvador
(stratovolcano)
San Salvador volcano is a massive stratovolcano immediately northwestwest of El Salvador city. Its modern summit cone is also called the Boqueron stratovolcano. It formed within a 6 km wide caldera left by the collapse of the predecessor volcano about 40,000 years ago. Remnants o... [more]

Cerro Cinotepeque
(volcanic field)
Cerro Cinotepeque volcano is a group of 4 young cinder cones on both sides of Río Lempa, about 40 km north of San Salvador city.
Cerro Cinotepeque (also spelled Cinotepec) lies south of the river, 2 other cones, Cerro Santiago and Cerro Mosquito, immediately north of the ri... [more]

Guazapa
(stratovolcano)
Guazapa volcano an eroded basaltic stratovolcano 23 km NE of San Salvador city. It is not known whether the Pleistocene volcano is still active. It shows signs of intense erosion that have cut deep valleys into its flanks, suggestin a very long dormany period, and there is no cra... [more]

Ilopango
(caldera)
Ilopango volcano is a 8x11 km wide caldera at the eastern margin of San Salvador city, El Salvador. It is elongated to the east, has 150-500 m high walls and contains the scenic Lake Ilopango, one of El Salvador's largest.
The caldera is the result of at least 4 large plini... [more]

San Vicente
(stratovolcano)
San Vicente volcano (also known as Chichontepec) is a twin-peaked stratovolcano SE of Lake Ilopango. It is the second highest volcano in El Salvador and probably still active although there are no known historical eruptions. There are many hot springs and fumaroles on the norther... [more]

Apastepeque
(volcanic field)
Apastepeque volcano is a young volcanic field 8 km north of San Vicente town in central El Salvador. The Volcanic features contains about 24 closely spaced cinder cones, lava flows, lava domes, and maars. The latter are now filled by lakes, such as Laguna de Apastepeque and Lagun... [more]

Taburete
(stratovolcano)
Taburete volcano is a basaltic to basaltic-andesite stratovolcano rising above the Pacific coastal plain east of the Río Lempa in El Salvador, located at the SW end of a cluster of volcanoes between San Vincente and San Miguel volcanoes.
Volcan Taburete contains a well-pres... [more]

Tecapa
(stratovolcano)
Tecapa volcano a complex basaltic-to-andesitic stratovolcano in east-central El Salvador. It is located at the NW end of a cluster of volcanoes east of the Río Lempa between San Vicente and San Miguel volcanoes. [more]

Usulután
(stratovolcano)
Usulután volcano is a stratovolcano in east-central El Salvador, at the SE end of a cluster of basaltic to basaltic-andesite stratovolcanoes between San Vicente and San Miguel volcanoes.
The volcano contains a broad 1.3-km-wide summit crater breached to the east. The flank... [more]

Chinameca
(stratovolcano)
Chinameca volcano (also known as El Pacayal) is a small stratovolcano next to the larger San Miguel volcano in eastern El Salvador. It is connected to San Miguel across a low saddle to the SE.
Chinameca is truncated by a 2-km-wide, steep-sided caldera, Laguna Seca el Pacay... [more]

San Miguel
(stratovolcano)
San Miguel volcano (also known locally as Chaparrastique) in eastern El Salvador is a symmetrical stratovolcano and one of the most active volcanoes of the country. It rises majestically from near sea level to 2130 m elevation and forms a prominent land mark.
The volcano's ... [more]

Laguna Aramuaca
(maar)
Laguna Aramuaca volcano is a lake-filled explosion crater (maar) 10 km SE of the city of San Miguel in southeastern El Salvador.
The crater is 1 km wide and might have formed less than 10,000 years. The phreatomagmatic eruptions that formed it left spectacular pyroclastic ... [more]

Conchagua
(stratovolcano)
Conchagua volcano (also known as Cochague) is an eroded stratovolcano on the western side of the Gulf of Fonseca in at the southeastern tip of El Salvador.
The main summit of Conchagua is Cerro del Ocote, but the secondary summit Cerro de La Bandera to the ENE of the elonga... [more]

Conchagüita
(stratovolcano)
Conchagüita volcano at the SE tip of El Salvador forms a small 4-km-wide island in the Gulf of Fonseca separated from Conchagua volcano across a narrow strait.
The volcano is a sharp-topped cone with a 100-m-wide summit crater at the southern end and contains a young lava ... [more]

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