Anostos Rift

The Anostos Rift is a location that appears in the Sonic the Hedgehog and its spin-off comic series published by Archie Comics. It is a undersea crack located on the outskirts of Meropis and an emerging point for Dark Gaia Monsters.

History
The Anostos Rift was created from the earthquakes occurring at the start of the Shattered World Crisis. From it, Dark Gaia Monsters began to emerge and infest the waters surrounding Meropis, endangering the underwater population.

Trivia

 * Anostos shares the name of the third city on the fictional of Meropis mentioned by the ancient Greek writer Theopompus. This city is said to be located on the outmost border of Meropis and is described as a yarning abyss caught in a perpetual state of twilight.