According to documentation shown on the history channel, it is capable of more, and is the location of the largest quake in the history of the planet, that geologists have found evidence of. Just a little south of this, going from the southern tip of Washington, to Mendocino in California, is the Juan de fuca fault, which if it slips, would react much like the boxer day quake did in Indonesia, except there would only be a 15 minute Tsunami warning, and the waves could be hundreds of feet tall, depending on far it drops..