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and the same kind of research that we're going to be doing. The calculations are going to be done to get us a 400 meter or the average crater. It turned out to be 2,000 years ago. And the impact would cause a 5.4 magnitude earthquake and that would have transferred force to the Grand Canyon and that would have delivered a 3.5 magnitude quake at the Grand Canyon. And that is more than enough to cause a 3.5 magnitude quake.