10 May '11, 11am

Andean Earthquakes to the East: The region west of the Andes Mountains is the leading edge of the South American...

The region west of the Andes Mountains is the leading edge of the South American continent into the Pacific Ocean. Subduction of the Nazca plate beneath South America has driven the growth of the Andes Mountains. Subduction has routinely generated earthquakes larger than magnitude 8.0 along the western margin of the mountain belt. Lesser known for tectonic activity is the eastern side. The region east of the central Andes Mountains has the potential for larger scale earthquakes than previously expected, according to a new study posted online in the May 8th edition of Nature Geoscience. Previous research had set the maximum expected earthquake size to be magnitude 7.5 (Richter), based on the relatively quiet history of seismicity in that area. This new study by researchers from the University of Hawaii at Manoa and colleagues contradicts that limit and instead suggests that...

Full article: http://www.enn.com/enn_original_news/article/42672

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The Awesome Energy Of Earthquakes

The Awesome Energy Of Earthquakes

environmentalgraffiti.com 11 May '11, 10am

In 2010 alone, over 21,000 earthquakes were recorded around the world. While tragedies like the earthquakes in Japan and H...

Water shortages threaten food future in the Middle East via @grist

Water shortages threaten food future in the Mid...

grist.org 06 May '11, 7pm

A water tower in Al-Muzahimiyah, Saudi Arabia. Photo: Andrew A. Shenouda This piece originally appeared in The Guardian . ...