The exploration work of the Kola Superdeep Borehole began on May 24, 1970, a day that seemed ordinary.
If there is anything special, it would be that seven days later, a magnitude 8.0 earthquake occurred in the Ancash Region of Peru, killing sixty-six thousand people.
The work of the Kola Superdeep Borehole started strangely — there were as many as 34,000 researchers involved in this project, but only a very few scientists were able to participate on-site.
This site wasn't only the 23-centimeter working surface of the Kola Superdeep Borehole, but the entire gigantic equipment and device setup.
Of course.
In that situation at the time, it can be explained as confidentiality.
Additionally, all personnel involved in this drilling work were each given an apartment unit.
The monthly salary level during the work period reached the annual salary of a university professor.
The drilling work of the Kola Superdeep Borehole was terminated in 1994, with a final depth of 12,262m.
