By ExploreNow Editor, on April 28th, 2012%
Volcano Type: Cinder cones
Volcano Status: Historical
Last Known Eruption: 1999
Summit Elevation: 728 m 2,388 feet
Latitude: 12.506°N 12°30’22″N
Longitude: 86.702°W 86°42’7″W
Central America’s youngest volcano, Cerro Negro, was born in April 1850 and has since been one of the most active volcanoes in Nicaragua. Cerro Negro is the largest, southernmost, and most recent of a group of four youthful cinder cones constructed along a NNW-SSE-trending line in the central Marrabios Range 5 km NW of Las Pilas volcano. Strombolian-to-subplinian eruptions at Cerro Negro at intervals of a few years to several decades have constructed a roughly 250-m-high basaltic cone and an associated lava field that is constrained by topography to extend primarily to the NE and SW. Cone and crater morphology at Cerro Negro have varied significantly during its eruptive history. Although Cerro Negro lies in a relatively unpopulated area, its occasional heavy ashfalls have caused damage to crops and buildings in populated regions of the Nicaraguan depression.
Click Here For The Rest Of Cerro Negro, Nicaragua
Originally posted 2010-08-24 04:15:07.
By ExploreNow Editor, on March 31st, 2012%
Volcano Type: Stratovolcano
Volcano Status: Holocene
Last Known Eruption: Unknown
Summit Elevation: 1394 m 4,573 feet
Latitude: 11.446°N 11°26’44″N
Longitude: 85.515°W 85°30’54″W
Volcán Maderas is a roughly conical, 1394-m-high stratovolcano that forms the SE end of the dumbbell-shaped Ometepe island in Lake Nicaragua. The basaltic-to-dacitic volcano is cut by numerous faults and grabens, the largest of which is a NW-SE-oriented graben that cuts the summit and has at least 140 m of vertical displacement. The small Laguna de Maderas lake occupies the bottom of the 800-m-wide summit crater, which is located at the western side of the central graben. The SW side of the edifice has been affected by large-scale slumping. Many pyroclastic cones are situated on the lower NE flank down to the level of Lake Nicaragua. The latest period of major growth of Maderas took place more than 3000 years ago. No confirmed historical eruptions are known from the volcano. A lahar in September 1996 killed six persons in an east-flank village, but associated volcanic activity was not confirmed.
Click Here For The Rest Of Maderas, Nicaragua
Originally posted 2010-08-28 03:17:31.
By ExploreNow Editor, on February 20th, 2012%
Volcano Type: Stratovolcano
Volcano Status: Historical
Last Known Eruption: 2009
Summit Elevation: 1745 m 5,725 feet
Latitude: 12.702°N 12°42’6″N
Longitude: 87.004°W 87°0’13″W
The San Cristóbal volcanic complex, consisting of five principal volcanic edifices, forms the NW end of the Marrabios Range. The symmetrical 1745-m-high youngest cone, named San Cristóbal (also known as El Viejo), is Nicaragua’s highest volcano and is capped by a 500 x 600 m wide crater. El Chonco, with several flank lava domes, is located 4 km to the west of San Cristóbal; it and the eroded Moyotepe volcano, 4 km to the NE of San Cristóbal, are of Pleistocene age. Volcán Casita, containing an elongated summit crater, lies immediately east of San Cristóbal and was the site of a catastrophic landslide and lahar in 1998. The Plio-Pleistocene La Pelona caldera is located at the eastern end of the San Cristóbal complex. Historical eruptions from San Cristóbal, consisting of small-to-moderate explosive activity, have been reported since the 16th century. Some other 16th-century eruptions attributed to Casita volcano are uncertain and may pertain to other Marrabios Range volcanoes.
 Ash column produced by San Cristóbal Click Here For The Rest Of San Cristóbal, Nicaragua
Originally posted 2010-08-26 04:52:30.
By ExploreNow Editor, on January 15th, 2012%
Volcano Type: Stratovolcano
Volcano Status: Historical
Last Known Eruption: 2010
Summit Elevation: 1700? m 5,577 feet
Latitude: 11.538°N 11°32’16″N
Longitude: 85.622°W 85°37’21″W
Volcán Concepción is one of Nicaragua’s highest and most active volcanoes. The symmetrical basaltic-to-dacitic stratovolcano forms the NW half of the dumbbell-shaped island of Ometepe in Lake Nicaragua and is connected to neighboring Madera volcano by a narrow isthmus. A steep-walled summit crater is 250 m deep and has a higher western rim. N-S-trending fractures on the flanks of the volcano have produced chains of spatter cones, cinder cones, lava domes, and maars located on the NW, NE, SE, and southern sides extending in some cases down to Lake Nicaragua. Concepción was constructed above a basement of lake sediments, and the modern cone grew above a largely buried caldera, a small remnant of which forms a break in slope about halfway up the north flank. Frequent explosive eruptions during the past half century have increased the height of the summit significantly above that shown on current topographic maps and have kept the upper part of the volcano unvegetated.
 Concepción Volcano at sunset Click Here For The Rest Of Concepción, Nicaragua
Originally posted 2010-08-27 03:16:49.
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