The New Madrid earthquakes effects were so widespread due to the type and depth of the fault plus the geology of the area (i.e. East of the Rockies) See compairison image..

The really big one expected to hit the U. S. and Canadian Northwest will come from the Cascadia Subduction Zone. It is expected to have effects much like the December 2004 Indonisia earthquake.

Now, where did I leave my hardhat? <img src="/images/graemlins/shocked.gif" alt="" />

Stay safe.

JimJr