Massive Range of Underwater Volcanoes Heating the World’s Oceans

“The massive mid-ocean ridge system is a continuous range of underwater volcanoes that wraps around the globe like seams on a baseball, stretching nearly 65,000 kilometers (40,390 miles),” according to the National Oceanic and Atmospheric Administration (NOAA). Volcanoes of the Deep ... Best Price: $1.99 Buy New $5.99 (as of 06:15 EDT - Details)

“The ridge system forms the longest and largest mountain range on Earth, winding its way between the continents,” NOAA continues.

The majority of the system is underwater, with an average water depth to the top of the ridge of 2,500 meters (8,200 feet).”

“The mid-ocean ridge is the most extensive chain of mountains on Earth, with more than 90 percent of the mountain range lying in the deep ocean.


The nearly continuous, global mid-ocean ridge system is clearly visible on this map of global topography above and below sea level. – NOAA

“Despite being such prominent feature on our planet, much of the mid-ocean ridge system remains a mystery. While we have mapped about half of the global mid-ocean ridge in high resolution, less than one percent of the mid-ocean ridge has been explored in detail using submersibles or remotely operated vehicles.”

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