The San Salvador Volcano (also known as Quezaltepeque or El Boquerón) is a stratovolcano situated northwest to the city of San Salvador. The crater has been nearly filled with a relatively newer edifice, the Boquerón volcano. San Salvador is adjacent to the volcano and the western section of the city actually lies among its slopes. Due to this close proximity, any geological activity of the volcano, whether eruptive or not, has the potential to result in catastrophic destruction and death to the city. Despite this, the volcano is iconic of the city, and several TV and radio antennas are situated on the El Picacho peaks and the crater of Boqueron. El Picacho, the prominent peak is the highest elevation (1,960 meters altitude).
San Salvador Volcano
The San Salvador volcano is instantly recognizable by its distinctive triangular crescent pointed apex, which has a dorsal fin-like shape.
The San Salvador Metropolitan Area is pinned between San Salvador (volcano) and Lake Ilopango Caldera. The Pacific Coast is adjacent south of the cityBoquerón crater with Boqueroncito cinder cone visible at the bottomView of San Salvador City from San Salvador volcano's highest point
The main edifice, known as the Boquerón edifice, formed between 700 and 1,000 years ago, filling up a former caldera. The crescent-shaped ridge on the northeast side of the volcano is a remnant of the caldera rim. The lavas of the Boquerón edifice contain more alkali elements and iron oxide than the lavas of the older edifice. Around 800 years ago, the present day crater was formed in a violent explosion. The crater, which gives it the present name (Boquerón means "big mouth" in Spanish) is 1.5 km in diameter and 500m deep. Within the crater around the upper walls, crops are cultivated by the locals who live on the volcano.
The magma chamber which the volcano sits upon contains a number of fissures which protrude along the flanks and sides of the volcano. The northwest (N40W) fissure has been the most active recently, with such significant eruptive events, such as the Loma Caldera eruption which buried the ancient village of Ceren and the eruption of El Playon (1658–71) which buried the town of Nexapa. The citizens relocated to Nejapa and nowadays the eruption is celebrated annually.
The most recent eruption in 1917 caused a flank eruption on the volcano along the N40W fissure. During this eruption, the crater lake inside the Boquerón evaporated and a cinder cone appeared, christened 'Boqueroncito'.
Galleryedit
A 1914 postal, with the image of the lagoon in the crater of San Salvador Volcano, El Salvador. The lagoon disappeared when the volcano erupted in 1917
The massive San Salvador volcano dominates the landscape and skyline west of the city of San Salvador.
The massive compound San Salvador (volcano) dominates the landscape west of El Salvador's capital city of San Salvador.
San Salvador skyline with the volcano behind it
A view of San Salvador volcano.
View of San Salvador Volcano from downtown San Salvador
San Salvador Volcano from Cuscatlán Stadium
San Salvador volcano towering over San Salvador city at night
Williams, H., and Meyer-Abich, H., 1955 Volcanisim in the southern part of El Salvador: University of California Publication in geological Sciences v. 32 pp1–64
Sofield. D., Eruptive history and volcanic hazards of Volcan San Salvador, in Rose W.I. et al., Natural Hazards in El Salvador: Bolder, Colorado, Geological Society of America Special Paper 375, pp 147–158.
Fairbrothers G E., Carr M J., and Mayfield F G., Temporal Magmatic Variation at Boqueron Volcano, El Salvador. Contrib. Mineral. Petrol. v 67, pp 1–9 (1978)
External linksedit
Wikimedia Commons has media related to San Salvador Volcano.
Topographical hazard zonation maps regarding the volcano and the city
January 01, 1970
salvador, volcano, salvador, volcano, also, known, quezaltepeque, boquerón, stratovolcano, situated, northwest, city, salvador, crater, been, nearly, filled, with, relatively, newer, edifice, boquerón, volcano, salvador, adjacent, volcano, western, section, ci. The San Salvador Volcano also known as Quezaltepeque or El Boqueron is a stratovolcano situated northwest to the city of San Salvador The crater has been nearly filled with a relatively newer edifice the Boqueron volcano San Salvador is adjacent to the volcano and the western section of the city actually lies among its slopes Due to this close proximity any geological activity of the volcano whether eruptive or not has the potential to result in catastrophic destruction and death to the city Despite this the volcano is iconic of the city and several TV and radio antennas are situated on the El Picacho peaks and the crater of Boqueron El Picacho the prominent peak is the highest elevation 1 960 meters altitude San Salvador VolcanoThe San Salvador volcano is instantly recognizable by its distinctive triangular crescent pointed apex which has a dorsal fin like shape Highest pointElevation1 893 m 6 211 ft Prominence1 580 m 5 180 ft Parent peakCerro El PicachoIsolation4 08 km 2 54 mi Coordinates13 44 02 N 89 17 38 W 13 734 N 89 294 W 13 734 89 294NamingNicknameQuezaltepequeGeographySan Salvador VolcanoCountry El SalvadorDepartmentsSan Salvador and La Libertad GeologyAge of rockPleistoceneMountain typeComplexType of rockBasalt and AndesiteVolcanic arcCentral AmericaLast eruption7 June 1917ClimbingNormal routeDrive and hike via El Boqueron HighwayAccessEl Boqueron National Park Contents 1 Boqueron edifice 2 Gallery 3 See also 4 References 5 External linksBoqueron edifice edit nbsp The San Salvador Metropolitan Area is pinned between San Salvador volcano and Lake Ilopango Caldera The Pacific Coast is adjacent south of the city nbsp Boqueron crater with Boqueroncito cinder cone visible at the bottom nbsp View of San Salvador City from San Salvador volcano s highest point The main edifice known as the Boqueron edifice formed between 700 and 1 000 years ago filling up a former caldera The crescent shaped ridge on the northeast side of the volcano is a remnant of the caldera rim The lavas of the Boqueron edifice contain more alkali elements and iron oxide than the lavas of the older edifice Around 800 years ago the present day crater was formed in a violent explosion The crater which gives it the present name Boqueron means big mouth in Spanish is 1 5 km in diameter and 500m deep Within the crater around the upper walls crops are cultivated by the locals who live on the volcano The magma chamber which the volcano sits upon contains a number of fissures which protrude along the flanks and sides of the volcano The northwest N40W fissure has been the most active recently with such significant eruptive events such as the Loma Caldera eruption which buried the ancient village of Ceren and the eruption of El Playon 1658 71 which buried the town of Nexapa The citizens relocated to Nejapa and nowadays the eruption is celebrated annually The most recent eruption in 1917 caused a flank eruption on the volcano along the N40W fissure During this eruption the crater lake inside the Boqueron evaporated and a cinder cone appeared christened Boqueroncito Gallery edit nbsp A 1914 postal with the image of the lagoon in the crater of San Salvador Volcano El Salvador The lagoon disappeared when the volcano erupted in 1917 nbsp The massive San Salvador volcano dominates the landscape and skyline west of the city of San Salvador nbsp The massive compound San Salvador volcano dominates the landscape west of El Salvador s capital city of San Salvador nbsp San Salvador skyline with the volcano behind it nbsp A view of San Salvador volcano nbsp View of San Salvador Volcano from downtown San Salvador nbsp San Salvador Volcano from Cuscatlan Stadium nbsp San Salvador volcano towering over San Salvador city at nightSee also editList of volcanoes in El SalvadorReferences edit San Salvador Global Volcanism Program Smithsonian Institution Williams H and Meyer Abich H 1955 Volcanisim in the southern part of El Salvador University of California Publication in geological Sciences v 32 pp1 64 Sofield D Eruptive history and volcanic hazards of Volcan San Salvador in Rose W I et al Natural Hazards in El Salvador Bolder Colorado Geological Society of America Special Paper 375 pp 147 158 Fairbrothers G E Carr M J and Mayfield F G Temporal Magmatic Variation at Boqueron Volcano El Salvador Contrib Mineral Petrol v 67 pp 1 9 1978 External links edit nbsp Wikimedia Commons has media related to San Salvador Volcano Topographical hazard zonation maps regarding the volcano and the city Retrieved from https en wikipedia org w index php title San Salvador volcano amp oldid 1179386566, wikipedia, wiki, book, books, library,
