Volcano news: Colima Volcano (Mexico)
Colima volcano (Western Mexico) activity update
Mittwoch Jan 22, 2014 08:12 | VON: T
Colima's western flank seen during an overflight a week ago (Unidad Estatal de Protección Civil y Bomberos, Jalisco)The volcano produces small explosions (reportedly 7-12 daily) generating small ash plumes up to about 1 km high.
An overflight revealed no significant changes at the summit crater where a lava dome is still growing at slow rate and produces small avalanches on the western side. Civil Protection warns of landslides from the steep slopes where a lot of fresh flows and loose material has accumulated over the past months.
Ash fall has been noted in Ciudad Guzman, Zapotiltic, Tuxpan and Huescalapa in the Jalisco province.
Although it seems that the current low-intensity eruption is not posing great hazard to the nearby areas, it is highly recommended to avoid valley and drainages radiating from the volcano (because of the risk of avalanches).
Donnerstag, Dez 05, 2013
Activity remains elevated. Strombolian-type explosions and lava flows / glowing lava avalanches on the upper slope continue. [mehr]
Sonntag, Nov 24, 2013
Lava avalanches and flows continue to spill down the upper flanks. [mehr]
Freitag, Nov 22, 2013
The current eruptive phase continues. Local newspapers reported explosions every 30-35 minutes, with plumes up to 2 km high. Lava flows (and incandescent avalanches) descend on the flanks of the volcano. [mehr]
Samstag, Nov 16, 2013
Activity has increased recently, judging from recent pcitures of the volcano. Abundant rockfalls and lava flows descend the flank of the steep cone. It appears that growth of the lava dome has resumed in speed and overflows the rims of the crater. [mehr]
Freitag, Jul 19, 2013
Although the volcano is no longer making much news, a lava flow continues to effuse as a viscous flow on the upper eastern flank of the volcano (source: pers. communicataion). [mehr]
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