Deepest point on earth

According to google searches, the Jinping Underground Laboratories are the "deepest" building or buildings constructed, reaching 7900 feet (2400 metre) below the surface.... However, the surface in question is a mountain. While that does classify as underground, it highlights a flaw in the question of the deepest underground building. I can't seem to find the lowest building in the world though, or the deepest in relation to depth within the earth's crust. What is the lowest point below sea level that we have built where a human can go? I imagine this is likely another laboratory. But where would a building of this description be? $\begingroup$ "depth within the earth's crust" Depends how you want to measure. Because the Earth is wider than tall, standing at the poles you're 22km closer to the centre of the Earth than you are at the equator - both at sea level. Are you asking strictly about the closest you can get to the centre of the Earth? $\endgroup$ $\begingroup$ The source for that wikipedia fact is based on a claim made in an article in the Canadian Mining Journal (a magazine/news company, not an academic journal) in 2007. The articles make it more clear that there are deeper mines (ie: centre of the Earth - a claim they don't provide any reference for either. It is currently the deepest base metal mine, at least. $\endgroup$ $\begingroup$ @J... The OP specifically asked for deepest below sea level, not deepest from the surface. The elevation of Carletonville, South ...

$\begingroup$ Oh come on. This question started off asking how far below the earth's surface people had gone on foot. Then it became how far below sea level on foot. Now it's just below sea level. Each time people have answered the question, and had their answer become wrong because the question has changed. PLEASE DO NOT DO THIS. $\endgroup$ $\begingroup$ @muze But you are drastically changing the criteria of the answer, making assessing the quality of an answer impossible. just ask a new question if you are going to change it that much. Right now the Kola superdeep would be perfectly valid answer even though it is only 9 inches across. $\endgroup$ $\begingroup$ How far below the surface is the natural water table at the mine? Because once the mine is eventually abandoned, when the recoverable gold has been mined, the pumps will be turned off & the mine will flood, which will reduce the depth that anyone could have access to while breathing air. $\endgroup$ $\begingroup$ @LightnessRacesinOrbit: Not necessarily. It may be abandoned by large mining companies for mining purposes but it could be re-purposed. Smaill scale illegal miners could attempt scavenging operations or it could be used for scientific purposes such as the former [Homestake Mine ]( $\endgroup$ Since you termed it based on sea level, the gold mines in South Africa are not the deepest, they begin at an elevation of ~1500 m, meaning their 4 km depth is only 2.5 km below sea level. The Kidd mine in Canada is 2...

Digital Terrain Model of Antarctica showing the continent how it would appear without ice. The ... [+] deepest point on continental Earth has been identified beneath the Denman Glacier along the east coast. Mathieu Morlighem et al. 2019 The deepest point of Earth's continents has been identified in Queen Mary Land, East Antarctica. The canyon buried under the ice of the Denman Glacier reaches 11,500 feet (3.5 kilometers) below sea level, for comparison, the lowest exposed land on Earth, the Dead Sea in the Jordan Rift Valley, is just 1,355 feet (413 meters) below sea level. The Mariana Trench in the western Pacific Ocean is still the deepest point on Earth with 36,037 feet (10.9 kilometers), but is geologically speaking part of the ocenic crust. Using microwave pulses, able to pass the thick ice covering most of the continent, the project compiled a preliminary map of the underlying bedrock. Gaps in the data were filled using physical models of glacier movements. Comparing the volume of ice entering a valley with the volume flowing out, the model can estimate the volume and shape of the buried valley, also giving an insight into the depth and roughness of the hidden valley floor.

This article needs additional citations for Please help Find sources: · · · · ( May 2009) ( This is a list of places on land below mean sea level. Places artificially created such as tunnels, mines, basements, and dug holes, or places under water, or existing temporarily as a result of ebbing of sea tide etc., are not included. Places where seawater and rainwater is pumped away are included. Fully natural places below All figures are in meters below mean sea level (as locally defined), arranged by depth, lowest first: This list is ( August 2008) Africa [ ] # Name Country Depth Notes / references 1 −153m (−502ft) in 2 −133m (−436ft) 3 −125m (−410ft) in 4 −55m (−180ft) in the 5 −47m (−154ft) 6 −43m (−141ft) 7 −40m (−131ft) 8 −17m (−56ft) 9 −5m (−16ft) Antarctica [ ] # Name Country Depth Notes / references 1 canyon under bedrock is at −3,500m (−11,500ft) This is the 2 −2,780m (−9,121ft) 3 Deep Lake, −50m (−164ft) Asia [ ] # Name Country Depth Notes / references 1 −430m (−1,411ft) lowest land in Asia and the world 31°30′N 35°30′E / 31.500°N 35.500°E / 31.500; 35.500 in 2 −381m (−1,250ft) lowest fixed water crossing in the world 31°52′27″N 35°32′27″E / 31.87417°N 35.54083°E / 31.87417; 35.54083 in 3 −345m (−1,132ft) Israeli town just south of the Dead Sea. 30°55′59.15″N 35°22′36.11″E / 30.9330972°N 35.3766972°E / 30.9330972; 35.3766972 in 4 −258m (−846ft) lowest city in the world 31°51′N 35°28′E / 31.85°N 35.46°E / 31.85; 35.46 in 5 −214m (−702ft) 32°48′N 35°36′E / 32.80°N 35.6...

ADVERTISEMENT Measuring the Greatest Ocean Depth The Challenger Deep in the Mariana Trench is the deepest known point in The first depth measurements in the Mariana Trench were made by the British survey ship HMS Challenger, which was used by the Royal Navy in 1875 to conduct research in the trench. The greatest depth that they recorded at that time was 8,184 meters (26,850 feet). In 1951, another Royal Navy vessel, also named the "HMS Challenger," returned to the area for additional measurements. They discovered an even deeper location with a depth of 10,900 meters (35,760 feet) determined by echo sounding. The Challenger Deep was named after the Royal Navy vessel that made these measurements. In 2009, sonar mapping done by researchers aboard the RV Kilo Moana, operated by the University of Hawaii, determined the depth to be 10,971 meters (35,994 feet) with a potential error of ± 22 meters. The most recent measurement, done in 2010, is the 10,994 meter ( ± 40 meter accuracy) depth reported at the top of this article, measured by the United States Center for Coastal & Ocean Mapping. Challenger Deep map: Map showing the location of the Challenger Deep on the southern end of the Mariana Trench, south of Guam. NOAA image modified by Kmusser and used here under a Exploring the Challenger Deep The Challenger Deep was first explored by humans when Jacques Piccard and Don Walsh descended in the In 2009 researchers from Woods Hole Oceanographic Institution completed the deepest di...