It makes a lot of people up here in the Pacific Northwest nervous to know that one of the few places capable of 9+ magnatude quakes is right off the coast. The fault line is the same length (about 600 miles), shape (straight with a slight curve) and distance from the coast (about 60 miles) as the fault that produced the 9.1 quake off the West Coast of Northern Sumatra (on 12/26/2005).
If you look at this map of the largest earthquakes recorded since 1900, you'll notice that off our coast is eerily blank - most scientists agree that we're in the time window and a really big one could occur during our lifetimes (or within the next 100+ years - Mother Nature is so precise, isn't she? :D ).
http://earthquake.usgs.gov/earthquakes/world/10_largest_world.phpWhere I'm currently living is far enough away from the Columbia river to not be affected (3 miles), but most of the coast and much of Seattle is probably going to be wiped out. Some of our volcanos might wake up again as well and THAT would be another long-term global annoyance!