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SHAKE AND BLOW
Connecting people and geology on volcanoes
by Staff Writers
Houghton, MI (SPX) Aug 04, 2015


Landslides on the slopes of volcanoes threaten communities like this one in El Salvador. Image courtesy Michigan Tech, Jose Fredy Cruz. For a larger version of this image please go here.

In October 2011, heavy rainfall poured down the sides of El Salvador's San Vicente Volcano, nearly four feet of water in 12 days. Coffee plantation employees, working high up on the volcano's slope began noticing surface cracks forming on steep slopes and in coffee plantations.

Cracks herald landslides--places where the wet, heavy upper layers, saturated with water, slide over the less-permeable rocky layers underneath. The workers radioed downslope, keeping close tabs on the rainfall gauge network.

Luke Bowman was also there, helping direct radio calls and conducting fieldwork. Bowman, who recently defended his doctoral research in geology at Michigan Technological University, studies geohazards on San Vicente.

The Journal of Applied Volcanology recently published some of his research, co-authored by Kari Henquinet, director of the Michigan Tech Peace Corps Master's International Program and a senior lecturer in the Department of Social Sciences.

Their work combines traditional hazard assessments with social science techniques to develop a more in-depth understanding of the risks present at San Vicente Volcano in El Salvador.


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Related Links
Michigan Technological University
Bringing Order To A World Of Disasters
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SHAKE AND BLOW
Twin volcanic chains above a single hotspot with distinct roots
Bergen, Germany (SPX) Jul 29, 2015
Located in the South Atlantic, thousands of kilometers away from the nearest populated country, Tristan da Cunha is one of the remotest inhabited islands on earth. Together with the uninhabited neighboring island of Gough about 400 kilometers away, it is part of the British Overseas Territories. Both islands are active volcanoes, derived from the same volcanic hotspot. A team of marine sci ... read more


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