Earthquakes Triggering Earthquakes
Since the turn of the century there have been about 15 really large earthquakes. Are they all related? Despite the fact that these quakes were widely separated, spanning much of the globe, geophysicist Paul Johnson and his colleagues at the Los Alamos National Laboratory believe they are. They developed simulations and physical experiments to represent the structure and dynamics of geological faults and, in so doing, demonstrated a mechanism by which earthquakes can influence the triggering of other earthquakes.