In one evening of July 1988, an atomic bomb of the power of 3 kilotons was detonated at a depth of 850 meters in the well number 18 of the atomic site Jarojakhinscaja, Western Siberia. The purpose of the nuclear test was the study of the tectonic movements of the earth's crust in the explosion.
Operations of placement of the bomb and sealing the well with a thick layer of concrete were carried out by civilians, sent away the day before the explosion, then conducted exclusively by the military.
Valentino Janghel, then thirty years old, was the man at the handling of the tower from which it was dropped the charge.
At the time of the explosion it was in the tundra to 40 km away, where he felt the earth move under my feet.
The area was declared inaccessible until May 1989.
On 24 September 1996 it was drawn up by countries with nuclear weapons the CTBT (Comprehensive Test Ban Treaty, the Treaty on the total ban of nuclear tests), but there has not yet entered into force today.
Are 718 in total, according to official estimates, the experiments carried out until 2006 between the USSR and the Russian Federation.