By ExploreNow Editor, on March 25th, 2012%
Volcano Type: Stratovolcano
Volcano Status: Historical
Last Known Eruption: 1940
Summit Elevation: 5911 m 19,393 feet
Latitude: 0.677°S 0°40’38″S
Longitude: 78.436°W 78°26’10″W
 Cotopaxi Volcano Symmetrical, glacier-clad Cotopaxi stratovolcano is Ecuador’s most well-known volcano and one of its most active. The steep-sided cone is capped by nested summit craters, the largest of which is about 550 x 800 m in diameter. Cotopaxi the highest active volcanoes in the world at 19,348 ft (5,897 m) is located at the center of the most visited national park on mainland Ecuador. Located 1 ½ to 2 hours south of Quito on the eastern flank of the Andes, Cotopaxi offers visitors the opportunity to enjoy a variety of activities including mountaineering, hiking, birding, horseback ridding, camping and mountain biking.
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Originally posted 2010-08-17 04:25:03.
By ExploreNow Editor, on March 11th, 2012%
Volcano Type: Stratovolcano
Volcano Status: Holocene
Last Known Eruption: Unknown
Summit Elevation: 5248 m 17,218 feet
Latitude: 0.659°S 0°39’34″S
Longitude: 78.714°W 78°42’49″W
The twin glacier-covered peaks of Iliniza volcano form prominent landmarks west of the Interandean valley. Iliniza Norte lies 1.8 km NNW of the higher peak, 5248-m Iliniza Sur. The dominantly andesitic-to-dacitic Iliniza is largely, if not entirely Pleistocene in age. However, the Tishigcuchi (Rasuyacu) lava dome on the south flank was active during the Holocene. Recent work suggests that Iliniza itself, which is substantially eroded, may have had relatively young eruptions (Hall 1987, pers. comm.). Iliniza Norte is a remnant of the main volcanic edifice, and the younger Iliniza Sur is an andesitic-dacitic stratovolcano surrounded by thick pyroclastic-flow deposits. An explosive eruption formed a small caldera, which is partially filled by a lava dome forming the summit of Iliniza Sur. Two lava domes are found on the southern and NE flanks of the complex.
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Originally posted 2010-08-23 04:16:19.
By ExploreNow Editor, on March 8th, 2012%
Volcano Type: Shield volcano
Volcano Status: Holocene
Last Known Eruption: Unknown
Summit Elevation: 759 m 2,490 feet
Latitude: 0.88°S 0°53’0″S
Longitude: 89.50°W 89°30’0″W
San Cristóbal Island consists of a densely vegetated western part and a lower, younger eastern part with many extremely youthful lava flows. The SW-side shield volcano morphologically resembles low-angle Hawaiian shields more than the steep-sided shields of Fernandina and Isabela Island. Most lava flows on the NE part of the island originated from SW-NE-trending fissures. Young lava flows have reached the sea, where some littoral cones formed. The latest eruptions were prehistorical in age, but are probably less than 1000 years old. Kicker Rock, two paired, steep-cliffed islands separated by a narrow cleft, is an enroded remnant of a tuff cone that forms one of the scenic highlights of the Galápagos, 5 km off the west coast of San Cristóbal.
 Satellite view of San Cristobal Click Here For The Rest Of San Cristóbal, Galápagos Islands, Ecuador
Originally posted 2010-08-27 03:17:24.
By ExploreNow Editor, on March 4th, 2012%
Volcano Type: Shield volcano
Volcano Status: Historical
Last Known Eruption: 2005
Summit Elevation: 1124 m 3,688 feet
Latitude: 0.83°S 0°50’0″S
Longitude: 91.17°W 91°10’0″W
The broad shield volcano of Sierra Negra at the southern end of Isabela Island contains a shallow 7 x 10.5 km caldera that is the largest in the Galápagos Islands. Flank vents abound, including cinder cones and spatter cones concentrated along an ENE-trending rift system and tuff cones along the coast and forming offshore islands. The 1124-m-high volcano is elongated in a NE direction. Although Sierra Negra is the largest of the five major Isabela volcanoes, it has the flattest slopes, averaging less than 5 degrees and diminishing to 2 degrees near the coast. A sinuous 14-km-long, N-S-trending ridge occupies the west part of the caldera floor, which lies only about 100 m below its rim. Volcán de Azufre, the largest fumarolic area in the Galápagos Islands, lies within a graben between this ridge and the west caldera wall. Lava flows from a major eruption in 1979 extend all the way to the north coast from circumferential fissure vents on the upper northern flank. Sierra Negra, along with Cerro Azul and Volcán Wolf, is one of the most active of Isabela Island volcanoes.
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Originally posted 2010-08-09 20:22:39.
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