Colima volcano (Mexico), activity update: signs of reawakening
Sa, 26. Aug 2017, 16:5216:52 PM | VON: T
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).
Seismic signal from Colima on 25 Aug 2017 (image: University of Colima)
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.
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Mi, 26. Jul 2017, 06:00
Colima volcano (Mexico) - Smithsonian / USGS Weekly Volcanic Activity Report for 26 July-1 August 2017 (Continuing Activity)
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