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[[Image:Geofront-dimensions.jpg|thumb|right|Dimensions of the Geofront at Hakone]]
[[Image:Geofront-dimensions.jpg|thumb|right|Dimensions of the Geofront at Hakone]]


"'''GeoFront'''" is the publicly used term to describe a massive subterranean cavity, specifically the GeoFront underneath [[Tokyo-3]] (site of pre-[[Second Impact]] Hakone). However, unknown to the public is that the GeoFront is actually not a naturally occurring structure, but the "[[Black Moon]]" of the Angel [[Lilith]]. Also unrevealed to the public was that there was actually another GeoFront discovered in [[Antarctica]], identical to the first:  the "[[White Moon]]" of [[Adam]].  The [[Nerv Headquarters]] building complex was built in the center of the GeoFront, and indeed the entire Nerv HQ complex and support city of Tokyo-3 were built in Hakone so that they could be constructed around the GeoFront, containing Lilith.
"'''Geofront'''" is the publicly used term to describe a massive subterranean cavity. In Neon Genesis Evangelion, it refers specifically the Geofront underneath [[Tokyo-3]] (site of pre-[[Second Impact]] Hakone). The Geofront under Tokyo-3 is not a naturally occurring structure, but the [[Black Moon]] of the Angel [[Lilith]]. The Black Moon is a massive sphere, 13.75 km in diameter, though over time it filled with earth and debris. Production drawings reveal that the dome-shaped cavern which constitutes the Geofront in the present day is 6 km in diameter and 900 meters high in the center at its highest point.  The same production drawing reveal that the top of the cavern is flattened, and some of it has been removed to accommodate the "ceiling city" of Tokyo-3's movable buildings. Between the surface and the top of the cavern are 22 layers of plate armor, to defend the Nerv base below.  


The GeoFront in Antarctica was referred to in classified United Nations files as "GF-01", presumably for "GeoFront-01".  It is not clear if that means that the GeoFront under Tokyo-3 was "GeoFront-02", or if, as the Evangelion Units were numbered starting with "Eva-00", the GeoFront under Tokyo-3 was discovered before the one in Antarctica, and codenamed "GeoFront-00".  In either case, as the existence of the Antarctica-GeoFront was kept entirely secret from the world, the term "GeoFront-01" was never publicly used, and the Japan-GeoFront was known simply as "''the'' GeoFront".   
The [[Nerv Headquarters]] building complex was built in the center of the Geofront, since it and support city of Tokyo-3 were meant to be constructed around Lilith. The construction led to further excavation deep underground, and the addition of numerous facilities for human habitation, such as access tunnels, trains, defense system and launching systems for Evangelions, among many other things.  Reflecting mirror buildings on the surface channel sunlight through large windows in the surface of the cavern, which in turn is reflected by underground mirror buildings, resulting in real sunlight filtering down into the Geofront along with a day/night cycle.   


The GeoFront was originally a massive sphere, 13.75 km in diameter, though over time it filled with earth and debris from landslides; by the present day, only a small fraction at the top has not been buried, which forms a dome-shaped cavern underground.  When Nerv HQ was being built, some further excavation was performed to add in access tunnels, monorails and car trains leading to the surface, etc.
The inside of the Geofront is filled with vegetation including entire forests of trees, possibly as part of the effort to make the Geofront inhabitable and simulate surface working conditions as closely as possible. It also possesses a large lake, at least 70 meters deep (from [[End of Evangelion]]) that has at least one Nerv warship present, although whether or not the lake is natural or artificial is unclear.  


The dome-shaped cavern which constitutes the GeoFront in the present day is 6 km in diameter and 900 meters high in the center at its highest point. The very top of the cavern does not curve up to a point, but has been flattened out into a smooth 2 km wide disk centered in the roof which the sides curve up towards. Within the center of this flattened disk is the "Ceiling City" of Tokyo-3's movable buildings poking downwards as they are retracted below the surface, which is itself 1.5 km in diameter.  The top of the cavern does not reach almost up to ground level, but is some distance below the surface; between the surface and the top of the cavern are 22 layers of plate armor, to defend the Nerv base below.  Thus it may be that the bottom floor of the GeoFront cavern is roughly ~1,000 meters below ground level.
The Tokyo-3 Geofront was not the only one of its kind. There had been a second Geofront in [[Antarctica]], created by the [[White Moon]] of [[Adam]]. Since it is mentioned to be completely identical to the Geofront under Tokyo-3, it may be presumed that both the Black Moon and White Moon had been constructed to identical dimensions.  


Forests of trees were planted throughout the GeoFront along with grass, and an artificial lake was created (which a Nerv patrol cruiser floats in) on one edge of the cavern, to simulate above-ground conditions for those working below.  Reflecting mirrors on the surface channel sunlight through large windows in the surface of the cavern, resulting in real sunlight filtering down into the GeoFront along with a day/night cycle.
==Notes==
*"Geofront" is a real-life term, an English word which was made in Japan. It means "underground space which the people can use for living, manufacturing, etc." by analogy to "waterfront" {{fact}} Because Japan is small and has overcrowding issues, research into the development of underground living and work space has been studied there.


The exact center of the cavern is actually the deep trench (shaped like an inverted pyramid) which levels of the Nerv HQ building descend into (Nerv HQ contains numerous levels below the "floor level" of the GeoFront cavern, thus forming underground installations ''below'' an already subterranean cavern).  The above floor level pyramid-shaped Nerv HQ building is located slightly off-center, extending off of the central trench, towards the side of the cavern containing the artificial lake.  The side of the cavern opposite the artificial lake was not fully excavated, so instead of the roof of the cavern smoothly curving to the floor, the ground level rises to meet it in a series of elevated hills.  As a result, while the diameter of the cavern is 6 km along most cross-sections, the  side with the hills is somewhat shortened so that the length of the cavern running from the hells to the lake-side wall is perhaps only 5 km. 
*This Geofront was referred to in classified United Nations files (seen in [[Episode 21]]) as "GF-01", presumably for "Geofront-01".  It is unclear if the Tokyo-3 Geofront ever had a number assigned to it, although common sense suggests that any assigned number would have to be kept secret to avoid inadvertently revealing the existence of the White Moon.
 
==Notes==
*"GeoFront" is a real-life term, an English word which was made in Japan. It means "underground space which the people can use for living, manufacturing, etc." Because Japan is small and has overcrowding issues, research into the development of underground living and work space has been studied there.


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Latest revision as of 11:28, 8 June 2021

Dimensions of the Geofront at Hakone

"Geofront" is the publicly used term to describe a massive subterranean cavity. In Neon Genesis Evangelion, it refers specifically the Geofront underneath Tokyo-3 (site of pre-Second Impact Hakone). The Geofront under Tokyo-3 is not a naturally occurring structure, but the Black Moon of the Angel Lilith. The Black Moon is a massive sphere, 13.75 km in diameter, though over time it filled with earth and debris. Production drawings reveal that the dome-shaped cavern which constitutes the Geofront in the present day is 6 km in diameter and 900 meters high in the center at its highest point. The same production drawing reveal that the top of the cavern is flattened, and some of it has been removed to accommodate the "ceiling city" of Tokyo-3's movable buildings. Between the surface and the top of the cavern are 22 layers of plate armor, to defend the Nerv base below.

The Nerv Headquarters building complex was built in the center of the Geofront, since it and support city of Tokyo-3 were meant to be constructed around Lilith. The construction led to further excavation deep underground, and the addition of numerous facilities for human habitation, such as access tunnels, trains, defense system and launching systems for Evangelions, among many other things. Reflecting mirror buildings on the surface channel sunlight through large windows in the surface of the cavern, which in turn is reflected by underground mirror buildings, resulting in real sunlight filtering down into the Geofront along with a day/night cycle.

The inside of the Geofront is filled with vegetation including entire forests of trees, possibly as part of the effort to make the Geofront inhabitable and simulate surface working conditions as closely as possible. It also possesses a large lake, at least 70 meters deep (from End of Evangelion) that has at least one Nerv warship present, although whether or not the lake is natural or artificial is unclear.

The Tokyo-3 Geofront was not the only one of its kind. There had been a second Geofront in Antarctica, created by the White Moon of Adam. Since it is mentioned to be completely identical to the Geofront under Tokyo-3, it may be presumed that both the Black Moon and White Moon had been constructed to identical dimensions.

Notes

  • "Geofront" is a real-life term, an English word which was made in Japan. It means "underground space which the people can use for living, manufacturing, etc." by analogy to "waterfront" [Source needed] Because Japan is small and has overcrowding issues, research into the development of underground living and work space has been studied there.
  • This Geofront was referred to in classified United Nations files (seen in Episode 21) as "GF-01", presumably for "Geofront-01". It is unclear if the Tokyo-3 Geofront ever had a number assigned to it, although common sense suggests that any assigned number would have to be kept secret to avoid inadvertently revealing the existence of the White Moon.
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