Colima volcano (Mexico), activity update: signs of reawakening

Sa, 26. Aug 2017, 16:52
16:52 PM | VON: T
Seismic signal from Colima on 25 Aug 2017 (image: University of Colima)
Seismic signal from Colima on 25 Aug 2017 (image: University of Colima)
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).
According to a special report from the University of Colima, other (non-observed) small explosions have followed since. The quakes detected yesterday were mainly of long-period and high-frequency type, and likely correspond to a the movement of a new batch of magma that has started to rise inside the volcano and probably will soon begin building a new lava dome.
Already since 2 weeks, earthquake activity has been above background, the report noted, including events located directly under the crater. New explosive / effusive activity can be expected to resume in the near future.

Vorherige Nachrichten

Mi, 26. Jul 2017, 06:00
On 2 June the Centro Universitario de Estudios e Investigaciones de Vulcanologia - Universidad de Colima reported that during the previous week seismic data revealed 45 high-frequency events, 12 long-period events, 1.2 hours of tremor, 3 landslides, and one low-intensity explosion. Two lahars descended the La Lumbre ravine (SW) and three descended the Montegrande ravine (SSE); both ravines are in Colima state. ... Read all
Mi, 31. Mai 2017, 16:32
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. ... Read all
Mehr anzeigen

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
App herunterladen
Volcanoes & Earthquakes - new app for Android
Android | iOS-Version

Mehr auf VolcanoDiscovery

Warum gibt es Werbung auf dieser Seite?
Unterstützen Sie unsere Arbeit!
Diese Webseite und die dazugehörigen Apps und Tools instandzuhalten und kostenlos Nachrichten zu Vulkanen, Erdbeben und anderen Themen bereitzustellen, verschlingt enorm viel Zeit und auch Geld.
Wenn Sie die Infos mögen und uns in der Arbeit dazu unterstützen wollen, würden wir uns über eine Spende (über PayPal oder mit Kreditkarte) sehr freuen.
Online Zahlung (Kreditkarte)
Damit können wir Ihnen auch in Zukunft neue Features entwickeln und Bestehende laufend verbessern.Vielen Dank!
Copyrights: VolcanoDiscovery and other sources as noted.
Nutzung von Bild- und Textmaterial: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.
Home | Travel | Destinations | Volcanoes | Photos | Earthquakes | About | Glossary | News | Contact | Privacy | Imprint | EN | DE | EL | ES | FR | IT | RU
Uns folgen:Folge uns auf FacebookFollow us on InstagramFolge uns auf TwitterBesuch unseren Youtube Kanal