The Soviet Kola Superdeep Borehole reached 12,262 meters, the deepest artificial hole in the world. The project stopped in 1992 due to funding and "anomalous phenomena." The internet circulated claims that the drilling team heard human-like screaming from the depths, and that scientists experienced time perception distortion after touching core samples. The "hell recording" became a famous urban legend after spreading online.
Account
The Soviet Kola Superdeep Borehole reached 12,262 meters, the deepest artificial hole in the world. The project stopped in 1992 due to funding and "anomalous phenomena." The internet circulated claims that the drilling team heard human-like screaming from the depths, and that scientists experienced time perception distortion after touching core samples. The "hell recording" became a famous urban legend after spreading online.
Debunked
The so-called "hell recording" was verified to be a 1989 audio clip edited together from horror movie sound effects, not an on-site recording. Deep rock fracture producing acoustic resonance has a geological explanation. No formal report of time perception anomalies by any scientist exists.
Sources
- Soviet/Russian Kola Superdeep Borehole scientific archives
- participant memoirs