From DailyTech: Last week Google Earth, which has recently turned its mapping efforts to imaging the ocean floor, created quite a stir, when someone noticed an unusual image on the ocean floor off the coast of Africa. The blurry image shows a rectangle the size of a small state made up of seemingly perfect straight lines. More lines crisscross the inside of the rectangle like streets.
The site, located in the Madeira Abyssal Plane, is being hailed by some as being possibly the fabled city of Atlantis. It was first discovered by a British aeronautical engineer Bernie Bamford. He states, "It looks like an aerial map of Milton Keynes. It must be man-made."
Google states that the lines are sonar lines based on its imaging techniques, though it could not explain why they stopped or started or featured gaps. Stated a spokesperson, "Bathymetric (or sea floor terrain) data is often collected from boats using sonar to take measurements of the sea floor. The lines reflect the path of the boat as it gathers the data. The fact that there are blank spots between each of these lines is a sign of how little we really know about the world’s oceans."
Based on Google's explanation, a possible alternative is that there are deep trenches in the area, which prevented the sonar from escaping.
However, some oceanographers, geophysicists, and other researchers aren't accepting Google's explanation and insist the image might be the long lost city of Atlantis, a staple of Greek mythology. They point out that the location in Google Earth closely echoes where Greek philosopher Plato claimed Atlantis to be located. Plato had said that Atlantis was 620 miles of Africa's coast, past the Canary Islands. He wrote that the land was home to advanced civilization before earthquake and floods sunk it into the sea around 9,700BC — nearly 12,000 years ago.
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