The energy stored in the fault was already there pent up. They just released it. Which if you actually look at it from a damage perspective. Might be sensible.

The energy stored in the fault was already there pent up. They just released it. Which if you actually look at it from a damage perspective. Might be sensible. Not allow those mega-nukes like the san andreas fault to build up tons of energy. Instead frack vibrate the fault loose in lots of micro quakes.