However , most of the intensity measurements were consistent with an overall maximum intensity of VII ( `` Very strong '' ) , and only the damage Damaging to a single structure , the Imperial County Services building in El Centro , was judged Deciding to be of intensity IX .

The bulk of the object 's energy was absorbed by the atmosphere , with a total kinetic energy before atmospheric impact Influence estimated from infrasound and seismic measurements to be equivalent to the blast yield of 400–500 kilotons of TNT ( about 1.4–1.8 PJ ) range – 26 to 33 times as much energy as that released Causation from the atomic bomb detonated Attack at Hiroshima .