Given Faithlife's location in north-west Washington, I thought this article in The New Yorker was pretty relevant.
http://www.newyorker.com/magazine/2015/07/20/the-really-big-oneTLDR: While everyone is worried about the San Andreas fault and "the big one" that's expected to hit California someday, a recently discovered fault line off the Oregon/Washington coast has many worried that something bigger is on the horizon. The fault line averages a massive 9.0+ earthquake every 250ish years, but hasn't had one for 315 years. And it's usually followed by a tsunami that, when it hits, is expected to wipe clean a 600-mile stretch of coast line that could reach as far inland as Interstate 5.