CAMBRIDGE, Mass., Dec. 24 (UPI) -- U.S. researchers studying deep earthquake faults in the Earth report they've discovered a "runaway" effect that allows tremors far below the surface to spread.
Analyzing seismic data from a region in Colombia with a high concentration of intermediate-depth earthquakes, scientists at MIT, working with colleagues from Stanford University, report they've identified a "runaway process" in which the sliding of rocks at great depths causes surrounding temperatures to spike.