Volcano news: Colima Volcano (Mexico)
Colima volcano (Mexico): new photos of crater, activity decreases
Monday Aug 31, 2015 16:17 PM | BY: T
Aerial photo of Colima's crater on 25 Aug, now approx. 60 m deep (photo: Carlos Navarro / Universidad de Colima)Explosions continue to occur from time to time at the volcano. During an overflight on 25 August, researchers from the University of Colima found that as a result of the explosions, the crater had been deepened by 20 meters during the past 2 weeks and is now approx. 60 m deep and 270 m wide, similar to what it was after the large eruption in 1913.
According to the scientists, the volcano's activity is currently in a decreasing trend, which corresponds to the decreasing size and frequency of explosions recently.
Links / Sources:
Links / Sources:
Thursday, Aug 27, 2015
Activity seems to have decreased over the past days. Explosions have been much weaker and almost absent recently. [more]
Friday, Aug 21, 2015
Explosions every few hours continue to occur, sending plumes of ash to 2-3 km above the volcano's summit crater. [more]
Tuesday, Aug 18, 2015
Explosive activity continues with sometimes relatively strong eruptions every few hours. [more]
Tuesday, Aug 11, 2015
Explosions remain frequent and sometimes intense. Ash columns rise up to 2 km from the crater. ... [more]
Friday, Aug 07, 2015
Explosive activity has resumed at the volcano since early August. ... [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