Volcano news: Colima Volcano (Mexico)
Colima volcano (Western Mexico) activity update
Wednesday Feb 24, 2016 11:12 AM | DOOR: T
Small emission and glow from Colima's summit crater this morningThe new lava dome in the summit crater continues to be active (and probably is growing) as bright glow visible at night suggests.
Explosive activity on the other hand has decreased recently.
Monday, Feb 22, 2016
As had been suspected last week, a new (still small) lava dome has appeared inside the volcano's summit crater. During an overflight on 19 Feb, it was seen to be approx. 25 m in diameter and 10 m tall. [meer...]
Thursday, Feb 18, 2016
Activity has not changed since the last update. The volcano produces intermittent weak to moderate explosions (every few hours on average) with ash plumes typically rising 500-2000 meters. ... [meer...]
Friday, Feb 12, 2016
The volcano continues to produce intermittent explosions, but there might be something new in the making: weak, but continuous glow from the crater has appeared during the last night - something that hasn't been observed since the latest effusive eruptive phase in July last year. It could indicate that a new lava dome is about to appear. The next days or weeks will probably give a better answer. ... [meer...]
Thursday, Feb 11, 2016
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) [meer...]
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