Lab earthquakes show how grains at fault boundaries lead to major quakes - EurekAlert

In a "seismological wind tunnel," engineers demonstrate the impact of rock gouge -- ground-up rock along a fault boundary -- on earthquake propogation.

By simulating earthquakes in a lab, Caltech engineers have provided strong experimental support for a form of earthquake propagation now thought responsible for the magnitude-9.0 earthquake that deva… [+5198 chars]

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