Volcano news: Colima Volcano (Mexico)
Colima volcano (Western Mexico) activity update
samedi avril 20, 2013 08:31 | AUTEUR : T
Current seismic recording from Colima volcano (Soma station, Univ. Colima)
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.
MODIS hot spots showing the traces of pyroclastic flows on the eastern flank
dimanche, avril 14, 2013
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
vendredi, avril 12, 2013
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
mercredi, avril 10, 2013
Eruptive activity continues with frequent small explosions, rockfalls, and sometimes larger pyroclastic flows. ... lire toutes
lundi, avril 08, 2013
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
samedi, mars 30, 2013
The "Volcano of Fire" has become a tourist attraction with now up to 200 weak to moderate explosions per day, and frequent incandescent rockfalls / small pyroclastic flows that descend the flank of the volcano to a length of up to 1.5 km and are a spectacular view at night. 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