(18.8.2018) So you don‘t buy that earthquakes can be man made? This is evidence from 60 years ago! It was detonated at least 6000 feet into the ground (roughly 2000 meters). This footage is from Project Cannikin, which was a proof-test for the 5 megaton warhead to be used on the Spartan missile system. Researchers were fearful of such a large device being detonated underground, so the testing was moved to way out in the middle of nowhere on the Amchitka penninsula in Alaska. The effect on the ground was necessary, and predicted, to see its pulse effect.
Seismic recordings of the test registered a magnitude of 6.8 on the richter scale as a direct result of the detonation. Over 1,000 after shocks with magnitudes as greater than 4.0 on the richter scale were recorded within the first 30 days following the blast.