you’d do well to remember former Soviet intellignece official Stanislav Lunev, the highest ranking Russian military intelligence officer to ever have defected to the United States, who during a rare public interview stated:
Question from B: New kinds of weapons seem to be coming out of Russia, here is a new one on me, maybe a lot of other people, what is a seismic weapon and was/ is the Russian government doing to produce them?
Lunev answer: This is actually artificial earthquake, which could be generated by special devices, which increase natural seismic waves, which are under our (Earth’s) surface and explode like natural earthquake with all following circumstances. Its actually, this weapon development was in place for about more than 20 years and in the mid of 80s there have been several fields tests of this weapons and maybe you heard this Armenian city Spitak was totally destroyed.
Question from B: Good lord, don’t tell me that was a Soviet test?
Lunev answer: It was an accidental explosion.
Question from B: That was an artificially induced earthquake?
Lunev answer: It was accidental explosion of earthquake which was generated by the test of seismic weapons.