diego melgar: 100 feet above sea level is a really safe place. if you can get to 100 feet, you're good. so there's places where that's just not feasible. in 2011, in japan, one of the big lessons that we learned is the importance of vertical evacuation structures. that's within the tsunami zone, a well-built building that can tolerate the tsunami, and debris hitting it, and people can be up above at a high level. right now, there are three in existence in the united states. that's a great start. but in washington alone, we need at least 50 more to be able to evacuate the people that just live there. diego melgar: it doesn't matter if you move really quickly if there's nowhere to go that is safe. if we don't take the steps that we need to take to protect ourselves, then it will likely be the worst disaster that we face in the us. but what i fear most is that if the earthquake happens now, today, we're not ready. we're very far from being ready. it will happen. it's just a matter of when. the united states has two tsunami warning centers that opera