Volcano news: Colima Volcano (Mexico)
Colima volcano (Mexico): activity increases, constant explosions, lava flow on SW flank
Saturday Oct 01, 2016 16:34 PM | DOOR: T
Explosions, a new lava flow (center of image) and glowing rockfalls at Colima yesterday evening
The activity has strongly increased over the past 48 hours: constant explosions generate a heavy steam and ash plume rising at least 2 km from the crater while the new lava dome continues to over-spill the southwestern crater rim and descends as a wide, viscous lava flow now half way down the steep cone.
Activity at Colima this morning
The activity also produces near-constant glowing avalanches over the SW and S flanks; some of them probably generate small pyroclastic flows reaching the base of the cone.
Saturday, Oct 01, 2016
Friday, Sep 30, 2016
Thursday, Sep 29, 2016
A phase of new lava dome growth has started at the volcano. While the new dome, first discovered in Feb this year, had been only very weakly active over most of the past month, its rate of growth has drastically increased during the past days. The dome itself has become visible from areas at the southern feet of the volcano since 27 Sep. ... [meer...]
Sunday, Sep 25, 2016
Tuesday, Sep 20, 2016
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