earthquake Archives | The American Ceramic Society


Animation of energy released during earthquakes since 1960

By Eileen De Guire / December 12, 2011

This two minute animation compares the relative sizes, i.e., energy released, in memorable earthquakes since 1960. The area of the circles represents the relative energy released, and the potential for a tsunami to occur is indicated by a color code system used by NOAA’s National Weather Service. Because the Richter scale is logarithmic, the animation…

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Haiti update: Georgia Tech humanitarian logistics and civil engineering/cements experts launch new effort to assess & reduce earthquake risks

By / August 10, 2011

Seismic and plate tectonic setting of the Caribbean region. Credit: Eric Calais, Purdue Univ. Back in early January, I had a story about proposal from a Georgia Tech team of cements experts who had a remarkable pragmatic and inexpensive proposal for rebuilding Haiti: Recycle the concrete that is laying around in huge rubble mounds. (Their…

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Nano clay coatings provide key lubrication at earthquake faults

By / June 28, 2010

Geologists say they have discovered that an ultra-thin layer of smectitic clay on rocks along deep, older fault lines in the San Andreas fault region provide important lubrication that permits gradual movement rather than earthquake-producing jumps. Geologist from the University of Michigan and the Ernst-Moritz-Arndt Universität Institut für Geographie und Geologie (Germany) say the smoother…

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