This is a subduction zone, but I would guess this is a shallow thrust earthquake, like Haiti. But this time we should actually get some PGV readings! If it is a shallow thrust, then it is most likely a 'super' earthquake, or 'Fist of God', as I like to call them. That means you get a high velocity pulse running up the fault. No building stands when that bursts out, but luckily it is usually a small zone. Well, we'll see.