The Living Force
Dutchsinse, bless him, has reported on a 6.5 magnitude Earthquake that was centred on Yellowstone caldera. This was following a 7.5 on the Pacific Northwest. This leaves a zone near Alaska that is at risk, and the North American craton is going to see some movement around Colorado, Oklahoma, and the New Madrid fault, and further North from there. He noted that Yellowstone has not seen significant movement like this for a number of years. Considering that it is a Supervolcano and the caldera is the size of SEVEN Grand Canyons, people in the area ought to take note.