Top 7: Deepest parts of the Sea
This is part 2 in our ongoing Top 7 series. In part 1 you could read about the Worlds Largest Sailing Yachts.
Approximately 71% of the Earth's surface is covered by ocean, a continuous body of water that is divided into several principal oceans and smaller seas. More than half of this are is over 3,000 meters (9,800 feet) deep. So let us look at Top 7 deepest parts of the ocean.
Rank 1: Mariana Trench, depth 11.030 meters (36.187 feet)
When it comes to the most deepest points in the ocean then the 1st rank goes to the Mariana Trench. It reaches a maximum-known depth of about 11.030 meters and is located in the western Pacific Ocean, to the east of the Mariana Islands. The trench is about 2,550 kilometers long but has a mean width of only 69 kilometers.
If Mount Everest, the highest mountain on Earth, was set in the deepest part of the Mariana Trench, there would be 2,060 meters of water left above it!
The Mariana Trench was first pinpointed and surveyed in 1951 by the British Survey ship Challenger II., which gave its name for the trench's deepest point, "The Challenger Deep".
Rank 2: The Tonga Trench, depth 10.882 meters (35.702 feet)
Close behind the deepest trench lies Tonga Trench which lies about 10,882 m below sea level and is located in the South Pacific Ocean , known as the Horizon Deep.
The Tonga Trench runs between the North Island of New Zealand and the island of Tonga. It is a subduction zone, where the Pacific Plate is converging with the Australian Plate. Closure rates of 24 cm per year have been measured - the fastest plate motion yet recorded. The older oceanic crust of the Pacific Plate is sinking below the more buoyant, young oceanic crust of the Australian Plate.
Together with Fiji and Samoa, the 36 inhabited islands of Tonga are the cradle of the Polynesian seafaring culture, which had stretched across the South Pacific by the 12th century.
Rank 3: The Kuril–Kamchatka Trench, depth 10,542 meters (34.587 feet)
It extends from a triple junction with the Ulakhan Fault and the Aleutian Trench to the north, to the Japan Trench to the south.
Kuril Trench is an oceanic trench with a maximum depth of 10,542 meters.
Rank 4: The Philippines Trench, depth 10,540 meters (34.580 feet)
Until 1970 the Philippine Trench was regarded as the deepest point of the earth.
Known also: Philippine Deep or Mindanao Deep. 10,540 meters depth were measured in its deepest point called the Galathea Depth and it stretches with a length of approximately 1,320 km. For comparison - the Pacific Ocean reaches otherwise only an average-depth of round about 4,190 meters.
Rank 5: The Kermadec Trench, depth 10,047 meters (32.962 feet)
It runs for about a thousand kilometers before finally joining with the Louisville Seamount chain and is specially noted by its very abrupt slope.
Rank 6: Puerto Rico Trench, depth 8,800 m (28.871 feet)
With a maximum depth of 8,800 m is called Milwaukee Deep, which is the deepest point in the Atlantic Ocean and the deepest point not in the Pacific Ocean.
This trench has been responsible for many tragic tsunami and earth quake activities of this region.
Perspective view of the sea floor of the Atlantic Ocean and the Caribbean Sea. The Lesser Antilles are on the lower left side of the view and Florida is on the upper right. The purple sea floor at the center of the view is the Puerto Rico trench, the deepest part of the Atlantic Ocean and the Caribbean Sea.
Rank 7: South Sandwich Trench, depth 8,428 meters (27.650 feet)
The trench is 965 km long and has a maximum depth of 8,428 metres below sea level. The deepest location is called Meteor Deep.
The South Sandwich Trench is a deep trench in the South Atlantic Ocean lying 100 km to the east of the South Sandwich Islands. The trench is produced by the subduction of the South American Plate beneath the small South Sandwich Plate with its volcanic island arc which results from this active subduction. Mount Belinda on Montagu Island is an active volcano.
We have more Top 7 posts ready for you, so stay tuned!
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