Volcano news: Colima Volcano (Mexico)
Colima volcano (Western Mexico) activity update
Thursday Feb 11, 2016 12:05 PM | BY: T
Washington VAAC reported that during 3-8 February ash plumes from Colima rose to altitudes of 4.9-6.7 km (16,000-22,000 ft) a.s.l. and drifted 75-140 km in multiple directions. (Smithsonian / USGS Weekly Volcanic Activity Report 3-9 February 2016)
Friday, Jan 29, 2016
Intermittent explosions of varying size continue, producing ash plumes that rise 1-3 km above the volcano. [more]
Sunday, Jan 10, 2016
The activity of the volcano has remained fairly stable over the past days, with small to moderate vulcanian-style explosions every 4-8 hours on average. [more]
Thursday, Jan 07, 2016
Wednesday, Dec 16, 2015
Activity at the volcano remains elevated. Moderate to strong vulcanian explosions occur every few hours. ... [more]
Wednesday, Dec 09, 2015
Explosive activity at the volcano remains quite intense. On average every 2-3 hours, vulcanian explosions occur from the summit vent, producing ash plumes (often with lightning) of up to 3-4 km height and showering the flanks with incandescent ejecta. [more]
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