Volcano news: Colima Volcano (Mexico)
Colima volcano (Western Mexico) activity update
Activity consisting of rockfalls, small pyroclastic flows and weak explosions continue with little changes during the past days.
jeu., 25 avril 2013, 15:3515:35 PM | AUTEUR : T
sam., 20 avril 2013, 08:31
Explosions, rockfalls and small pyroclastic flows, as well as volcanic earthquakes have increased and become more frequent at the volcano. Hot pyroclastic deposits on the eastern flank of the volcano are visible on recent MODIS satellite image data. ... lire toutes
dim., 14 avril 2013, 09:57
After a week of relatively high activity, the volcano has been a bit calmer yesterday and today, although there are still frequent rockfalls and small explosions from the growing lava dome. ... lire toutes
ven., 12 avril 2013, 15:59
The new lava dome continues to grow inside the crater that had formed during the eruptions in January and has by now been completely filled by the new lava. The dome overspills the old crater rims to the southerns and western sides and produces glowing avalanches as well as small ash explosions several times per hour. ... lire toutes
mer., 10 avril 2013, 06:35
Eruptive activity continues with frequent small explosions, rockfalls, and sometimes larger pyroclastic flows. ... lire toutes
lun., 8 avril 2013, 15:26
The lava dome continues to grow more or less steadily and produce small explosions. Collapse of parts of the accumulating lava at the dome causes occasional pyroclastic flows (such as late on 6 April) and glowing rockfalls on the flank. Today, it has been comparably calm, though. ... 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