Volcano news: Colima Volcano (Mexico)
Colima volcano (Western Mexico) activity update: extrusion of lava flow from summit, intermittent explosions
mardi mars 11, 2014 10:27 | AUTEUR : T
Aerial view of Colima volcano on 7 March, showing the viscous lava dome at the summit (photo: Proteccion Civil Jalisco Uepcbj / facebook)Mild effusive and explosive activity continue at the volcano. A recent overflight made by the Civil Protection's fire fighting department of Jalisco (UEPCBJ) showed no significant changes in the summit area of the volcano. A flat mass of viscous lava is slowly extruding and overspilling on the western and southern sides of the upper cone, causing incandescent avalanches sometimes visible at night. Intermittent explosions with ash emission also continue to occur.
- Proteccion Civil Jalisco (facebook)
mercredi, janv. 22, 2014
The volcano produces small explosions (reportedly 7-12 daily) generating small ash plumes up to about 1 km high. ... lire toutes
jeudi, déc. 05, 2013
Activity remains elevated. Strombolian-type explosions and lava flows / glowing lava avalanches on the upper slope continue. ... lire toutes
dimanche, nov. 24, 2013
Lava avalanches and flows continue to spill down the upper flanks. ... lire toutes
vendredi, nov. 22, 2013
The current eruptive phase continues. Local newspapers reported explosions every 30-35 minutes, with plumes up to 2 km high. Lava flows (and incandescent avalanches) descend on the flanks of the volcano. ... lire toutes
samedi, nov. 16, 2013
Activity has increased recently, judging from recent pcitures of the volcano. Abundant rockfalls and lava flows descend the flank of the steep cone. It appears that growth of the lava dome has resumed in speed and overflows the rims of the crater. ... lire toutes
Background:Colima volcano is one of the most active in North America and one of the potentially most dangerous ones. It has had more than 30 periods of eruptions since 1585, including several significant eruptions in the late 1990s. Scientific monitoring of the volcano began 20 years ago.
The Colima volcanic complex is the most prominent volcanic center of the western Mexican Volcanic Belt. It consists of two southward-younging volcanoes, Nevado de Colima (the 4320 m high point of the complex) on the north and the 3850-m-high historically active Volcán de Colima at the south.
A group of cinder cones of probable late-Pleistocene age is located on the floor of the Colima graben west and east of the Colima complex. Volcán de Colima (also known as Volcán Fuego) is a youthful stratovolcano constructed within a 5-km-wide caldera, breached to the south, that has been the source of large debris avalanches. Major slope failures have occurred repeatedly from both the Nevado and Colima cones, and have produced a thick apron of debris-avalanche deposits on three sides of the complex. Frequent historical eruptions date back to the 16th century. Occasional major explosive eruptions (most recently in 1913) have destroyed the summit and left a deep, steep-sided crater that was slowly refilled and then overtopped by lava dome growth.
Source: GVP, Smithsonian Institute - Colima information