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322:. The crater has been nearly filled with a relatively newer edifice, the BoquerĂłn 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).
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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 (BoquerĂłn 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.
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The main edifice, known as the BoquerĂłn 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 BoquerĂłn edifice contain more alkali elements and iron oxide than the
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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
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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.
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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
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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)
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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
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The San
Salvador volcano is instantly recognizable by its distinctive triangular crescent pointed apex, which has a dorsal fin-like shape.
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The massive compound San
Salvador (volcano) dominates the landscape west of El Salvador's capital city of San Salvador.
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The massive San
Salvador volcano dominates the landscape and skyline west of the city of San Salvador.
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and the eruption of El Playon (1658–71) which buried the town of Nexapa. The citizens relocated to
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caused a flank eruption on the volcano along the N40W fissure. During this eruption, the
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Topographical hazard zonation maps regarding the volcano and the city
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BoquerĂłn crater with
Boqueroncito cinder cone visible at the bottom
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San Salvador volcano towering over San Salvador city at night
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Note: volcanoes are ordered from north-west to south-east.
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Caldera. The Pacific Coast is adjacent south of the city
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View of San Salvador Volcano from downtown San Salvador
379:and nowadays the eruption is celebrated annually.
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394:appeared, christened 'Boqueroncito'.
390:inside the BoquerĂłn evaporated and a
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318:situated northwest to the city of
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507:List of volcanoes in El Salvador
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459:A view of San Salvador volcano.
936:Stratovolcanoes of El Salvador
336:San Salvador Metropolitan Area
16:Complex volcano in El Salvador
1:
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59:1,580 m (5,180 ft)
49:1,893 m (6,211 ft)
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79:4.08 km (2.54 mi)
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589:Central American volcanoes
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295:El BoquerĂłn National Park
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931:Mountains of El Salvador
525:Global Volcanism Program
655:Santa MarĂa/Santiaguito
530:Smithsonian Institution
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304:San Salvador Volcano
163:San Salvador Volcano
22:San Salvador Volcano
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863:RincĂłn de la Vieja
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39:Highest point
941:Complex volcanoes
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107:13.734°N 89.294°W
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382:The most recent
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69:Cerro El Picacho
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747:San Salvador
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670:Siete Orejas
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360:San Salvador
320:San Salvador
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282:Normal route
255:Volcanic arc
239:Type of rock
198:San Salvador
780:Cerro Negro
752:San Vicente
709:El Salvador
685:Tecuamburro
665:Santo Tomás
392:cinder cone
388:crater lake
371:village of
312:El BoquerĂłn
271:7 June 1917
220:Pleistocene
215:Age of rock
202:La Libertad
194:Departments
188:El Salvador
110: /
85:Coordinates
65:Parent peak
925:Categories
896:La Yeguada
848:Miravalles
830:Costa Rica
785:ConcepciĂłn
742:San Miguel
605:Acatenango
513:References
98:89°17′38″W
95:13°44′02″N
55:Prominence
873:Turrialba
810:Momotombo
790:CosigĂĽina
767:Nicaragua
737:Santa Ana
727:Conchagua
717:Chinameca
680:Tajumulco
660:San Pedro
615:Almolonga
597:Guatemala
138:Geography
75:Isolation
45:Elevation
901:El Valle
853:Platanar
805:Mombacho
775:Apoyeque
757:Usulután
625:Chicabal
501:See also
358:View of
276:Climbing
248:Andesite
129:Nickname
868:Tenorio
795:Maderas
690:Tolimán
620:Atitlán
398:Gallery
314:) is a
232:Complex
209:Geology
176:Country
883:Panama
838:Arenal
820:Telica
800:Masaya
732:Izalco
722:Chingo
675:Tacaná
650:Pacaya
645:Moyuta
377:Nejapa
291:Access
244:Basalt
185:
123:Naming
843:IrazĂş
640:Jumay
635:Fuego
373:Ceren
891:BarĂş
858:Poás
610:Agua
334:The
302:The
246:and
200:and
310:or
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