Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Passage: The Kola Superdeep Borehole (Russian) bụ nsonaazụ nke ọrụ nyocha sayensị nke Soviet Union na Pechengsky District, na Kola Peninsula. Ọrụ ahụ gbalịrị igwu ala n'ime ala ruo ókè o kwere mee. Igwu mmiri malitere na 24 Mee 1970 site na iji Uralmash-4E, na mgbe e mesịrị usoro Uralmash-15000 rig rig. A na-egwu olulu site n'isi n'oghere dị n'etiti. Onye kachasị omimi, SG-3, ruru mita 12,262 (40,230 ft; 7.619 mi) (Mkpa nyocha. Dabere na akara edere na olulu mmiri ahụ, omimi ya bụ 12,226 m, ) na 1989 ma bụrụ ebe kachasị omimi na ụwa, dị ka nke May 2019. Oghere ahụ dị sentimita iri abụọ na atọ n'obosara. N'ihe banyere ịdị omimi nke ọma, ọ bụ oghere kachasị omimi n'ụwa. Ruo afọ iri abụọ, ọ bụkwa olulu mmiri kachasị ogologo n'ụwa n'ihe banyere omimi a tụrụ n'akụkụ olulu mmiri ahụ, ruo mgbe ọ karịrị ya na 2008 site na 12,289-mita-ogologo (40,318 ft) Al Shaheen mmanụ dị na Qatar, na 2011 site na 12,345-mita-ogologo (40,502 ft) Sakhalin-I Odoptu OP-11 Ọfụma (n'ụsọ oké osimiri site na agwaetiti Russia nke Sakhalin).  Ajụjụ: Olee ụbọchị a malitere igwu mmiri?
24 Mee 1970