Earth is mostly covered with water, with nearly 71% of its surface or about 362 million square kilometers composing of the ocean. The average depth of ocean is 12,200 feet and has a deepest point called as the Mariana Trench. It is located in the western Pacific with 36,198 feet deep. It is not a surprise that there are mountains below the ocean. There are ocean ridges that form a great mountain range that weaves its way through all the major oceans. It is approximately 40,000 miles or 64,000 kilometer long and is the largest single feature on Earth. The highest mountain that is located in the ocean floor is the Mauna Kea, which can be found in Hawaii. From the ocean floor, its base rises at 33,474 feet but is only 13,680 feet above sea level. You can only view one-third of its whole size. Here are other interesting facts about the ocean.
- The average temperature of the ocean is only 2°C or 39°F.
- The Monterey Bay Submarine Canyon located in California, is deeper and large in volume than the Grand Canyon.
- Mount Everest is famous because it is the highest point on the Earth’s surface measuring up to 5.49 miles. But it is still more than 1 mile shorter than the Challenger Deep, the deepest point in the ocean at 6.86 miles.
- Water pressure at the deepest point in the ocean is more than 8 tons per square inch. This is equivalent to a person trying to hold 50 gigantic jets.
- The Antarctic ice sheet that forms and melts over the ocean each year is nearly twice the size of the United States.
- The Great Barrier Reef is the largest living structure on Earth. It measures up to 1,243 miles. It can also be seen from the moon, just like the Great Wall of China.
- The Gulf Stream off the Atlantic seaboard of the United States flows 300 times faster than the typical flow of the Amazon River, the world’s largest river.