From Anchorage News via geology.com:
The Pacific Northwest is a restless place.
The ground is being shoved by tectonic plates. Snow-capped volcanoes inflate and deflate in concert with the creep of molten rock. Coastlines bulge as tension builds on an offshore fault very like the one that snapped in Japan on March 11.
Scientists now can track these minuscule motions as they happen, thanks to an expanded network of GPS sensors...
