It is a giant earthen bowl with a diameter of 1200 meters and a depth of 180 meters with edges 48 meters high. The crater arose about 50 thousand years ago after the fall of a 50-meter meteorite weighing 300 thousand tons and flying at a speed of 45-60 thousand km / h. The explosion from the fall was three times more powerful than the explosion of the Tunguska meteorite and was similar in power to the explosion of 20 million tons of trinitrotoluene or 1000 atomic bombs, similar to those dropped on Hiroshima. Fragments of meteoric nickel iron have been found inside and around Arizona Crater. Scientists have known about the existence of the crater only since 1891.