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COLIMA EXCHANGE AND RESEARCH IN VOLCANOLOGY






Current News


Cities on Volcanoes

Colima is to host the Cities on Volcanoes meeting in November 2012. This will be the 7th meeting following others in Naples, Auckland, Hawaii, Quito, Japan and Tenerife. The idea behind the event is one of participation from the non-academic sector, where we can work on issues such as education, communication, risk analysis and emergency management.

Information will start to expand on the website: www.citiesonvolcanoes7.com

Two international workshops on predicting eruptions

Nick attended two workshops in 2011, first in the Philippines in June which asked the question “Can Plinian Eruptions be Forecast?” and the second in Erice, Sicily, which sought to define the best ways for volcano observatories to find and communicate precursors to eruptions in the short-term. Both events producing stimulating discussions and opened doors to more sharing between observatories in the future.

Infrasound project – May 2011

During May Aída Quezado paid us a visit from New Mexico Tech to carry out the installation of two new infrasound stations. One is located above Juan Barragán on the SE flank, the other near to La Lumbre on the SW flank. Each consists of an array of four sensors and will supplement the telemetred network (currently only one station of three is functioning). The data produced will be analysed as part of Aída’s PhD project.

aida installing infrasound probe
Aida installing infrasound probe

Isla Socorro – May 2011

There was a trip to Isla Socorro during April and May. Many points were included in a further self-potential survey of the summit region as well as CO2 flux measurements made. At Cabo Henslow further work was carried out to catalogue a Surtseyan eruption which took place there an undetermined number of years ago.

lapilli

The photo shows a deposit with abundant accretionary lapilli.


Effusive eruption – May 2011

There are signs of a decrease in the eruption rate with a drop off in the number of rockfalls occurring. This is the first clear decrease noted since the current episode commenced in January 2007. The number of explosions is also decreasing. Quite what this means is difficult to forecast after such a sustained period of fairly constant activity.

22Feb Flight
The photo taken from a flight in February shows the grey western lobe, as well as a fresh explosion crater in the SE sector.

April Fieldwork

Work continues to get the Doppler Radar system running completely. Data is being acquired, though the radio link and camera are not currently in operation. Several Playon trips have taken place to gather more data for the rockfall project


Ceboruco – March 2011

During a fieldtrip for the volcanology class of LICAMGER the beautiful dacitic flow from the central dome was explored. The photo shows the amazing fracturing present within the blocks.

ceboruco

Visit of Olivier Reubi – Feb. 2011

Olivier last visited in 2006 when the collaboration was started. Olivier is looking at melt inclusions to ascertain variations in volatiles associated with different eruptive characteristics as well as U-series isotopes to determine resident times of the magma. During his visit we sampled most of the historic flows.

olivier




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Address

Centre of Exchange and
Research in Volcanology
Faculty of Science
University of Colima

Bernal Díaz del Castillo #340
Col. Villas San Sebastián, C.P. 28045
Colima, Colima, México

Phone:
  • +52 (312) 316-1000 ext. 48002
  • 316-1135 (Faculty Secretary)
Email:
visits
since 01/10/2005

Author: Dr. Nick Varley
Design: Till Sonnemann , Carlos Banda and Luis Banda
Updating: Luis García, Fernando Velázquez
Last Changes: 25th-September-2011
URL of this page: www.ucol.mx/ciiv

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