Google has updated its Google Ocean maps extension to remove grids that looked like they could be ruins of the lost city of Atlantis.

The 2009 , an underwater extension of Google Earth, included a grid formation in the Atlantic that prompted many to speculate that the search giant had uncovered the lost city of Atlantis. A recent update to Google Earth, however, has quashed those rumors, according to LiveScience.

The grids weren't actually the remnants of the famous lost city; rather they appeared as a result of overlapping data sets. Google's ocean data is created in part from sonar waves, which combined with other types of data, can cause these grids to appear. But Google added new seafloor data from the University of California San Diego's (UCSD) Scripps Institution of Oceanography and the National Oceanic and Atmospheric Administration (NOAA), among other organizations, with , which resulted in the removal of these lines.

"The original version of Google Ocean was a newly developed prototype map that had high resolution but also contained thousands of blunders related to the original archived ship data," Scripps geophysicist David Sandwell told LiveScience. "UCSD undergraduate students spent the past three years identifying and correcting the blunders."

LiveScience said that Google has also taken additional steps to ensure the accuracy of the maps on Google Ocean. It now takes 15 percent of its ocean floor imagery from shipboard soundings at a resolution of 0.6 miles, up from the previous rate of 10 percent. That rate is set to improve again later this year, when Google deploys a new calculation method that yields depth predictions that are twice as accurate, LiveScience said.

"The Google map now matches the map used in the research community, which makes the Google Earth program much more useful as a tool for planning cruises to uncharted areas," Sandwell added.

For more, see the slideshow of the original Google Earth below.