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Galeras update, 4 November 2009 4 November 2009

Posted by admin in activity reports, Colombia, Galeras.
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The alert level for the Colombian volcano Galeras remains at the second-highest level of Orange, ‘eruption likely within the next few days or weeks’. The latest INGEOMINAS bulletin, issued on 3 November at 18:00 local time, reports:

Seismic activity has increased both in number and in energy level; the events associated with the fracturing of crustal material are largely located in the vicinity of the main crater, at depths of less than 2 km and magnitudes of under 2. However in the last fifteen hours the seismicity has markedly declined.

Volcanic gas emissions have been low; particularly, in the last few days, no emissions of sulphur dioxide (SO2) have been detected.

The process of development at Galeras shows a similar behaviour to that recorded in the days leading up to the eruptive event of 30 September 2009.

The simultaneous threat of activity at Galeras and Nevado del Huila is exercising the minds of governmental and NGO officials in Colombia. Emergency authorities have estimated the number of people at ‘imminent risk’ from the two volcanoes at 9000, reports Caracol Radio, but there is the usual reluctance among those living in at-risk areas to evacuate: ‘The communities in the area of high risk are still unaware [of their danger], they have not evacuated to safe points’, complains Carlos Iván Márquez of the Colombian Red Cross.

For all our Galeras coverage: Galeras « The Volcanism Blog.

News
Nueve mil personas en riesgo por amenaza de erupción en volcán Galeras y Huila – Caracol Radio, 3 November 2009
Habitantes no atienden orden de evacuaciónEl Liberal, 4 November 2009

Information
Global Volcanism Program – Galeras – summary information for Galeras (1501-08=)
Portal Corporativo de INGEOMINAS – Instituto Colombiano de Geología y Minería
Observatorio Vulcanológico y Sismológico de Pasto – Pasto volcanological observatory main page

The Volcanism Blog