Volcano news: Colima Volcano (Mexico)
Colima volcano (Mexico): increasing signs of unrest, small explosions
Saturday Jun 08, 2019 10:23 AM | BY: T
Signal from an explosion at Colima volcano on 30 May 2019 (image: University of Colima)The volcano's activity continues to gradually increase. During the last week of May, intermittent small explosions and steam-and-gas emissions were recorded, mainly from the NE side of the crater.
During overflights conducted during 23-24 May scientists from the Colima University observed that a new crack or cavity observed during the previous week had widened and now become a hole due to the combination of excavation due to explosions and probable subsidence.
The maximum temperature recorded with a portable thermal camera was 252 degrees Celsius, an increase of 80 degrees since recorded on 1 May.
Source: Smithsonian / USGS Weekly Volcanic Activity Report 29 May-4 June 2019
Links / Sources:
Links / Sources:
- Boletín técnico semanal de la actividaddel Volcán de Colima (University of Colima)
Friday, Apr 26, 2019
After over a year of low activity the volcanic alert level at the Colima volcano has been raised from green (base activity) to yellow (low activity) in response to a recent increase in seismic activity. ... [more]
Thursday, Oct 04, 2018
Friday, Nov 10, 2017
The volcano has been calm (at least at the surface) during the past months. Only a weak gas and steam plume is rising from the summit crater left after the explosive eruptions in January this year. ... [more]
Saturday, Aug 26, 2017
There are signs that the volcano might be entering a new eruptive phase. Along with an increase of volcanic earthquakes, a small explosion was observed yesterday night (at 00:50 local time on 25 Aug 2017). ... [more]
Wednesday, May 31, 2017
The volcano has remained calm since the series of powerful explosions in Jan-Feb this year. A recent report by scientists from the Universidad de Colima mentioned ongoing seismic activity as well as very week explosions. [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