Hello Todd,

Mike is right about the lack of historical data on quakes. Even if we lived 10,000 years we still would not know for sure. The problem is each time a large quake hits, all the previous stress patterns are like throwing the baby out with the bath water. But it is being worked on in a number of ways. Here is a good link to some of this work. There's a lot here.

Glen

• Stress Triggering