1.   ...the chain of causality that produces an earthquake.

2.   Large fault systems like these tend to be made of segments that produce earthquakes of varying magnitudes.

3.   Outside California, Yellowstone is the most seismically active region in the continental United States and is capable of producing large earthquakes.

4.   Some of the images even show the location of fault lines that produce earthquakes.

5.   The resulting movement produces earthquakes in much the same fashion as those seen in California.

6.   The area is bisected by a fault line running through two mountain ranges, Sudiraman and Jayawijaya, which produces frequent earthquakes.