I am trying to find out how deep or how many miles down is the deepest spot in the ocean.?
2006-11-13 20:17:45 · 7 answers · asked by denise t 1 in Science & Mathematics ➔ Geography
In 1984 the Japanese sent a highly specialized survey vessel out the the Marianas Trench and collected some data using a piece of equipment called a narrow, multi-beam echo sounder.
What an echo sounder does is send high frequency sound waves (outside the range of human hearing) through the water down to the ocean bottom. Sound waves will travel through water, even faster than they travel through the air, and bounce off solid objects, such as the ocean bottom. The echo sounder measures precisely how long it takes for the sound waves to be returned to the surface and determines the depth based on the rate of return. These soundings are plotted on a graph by a computer to make an "echo map" of the ocean bottom.
The deepest measurement of the Challenger Deep currently available was taken by the Japanese and was found to be 35,838 feet.
2006-11-13 20:20:23 · answer #1 · answered by Ruthie Baby 6 · 0⤊ 0⤋
The deepest point in the ocean lies in the Mariana Trench in the Pacific Ocean. The Mariana Trench is located in the western part of the Pacific Ocean near the fourteen Mariana Islands. The shape of the Mariana Trench is that of a semi-circle. It extends northeast to southwest for about two thousand five hundred fifty meters and is seventy kilometers wide. The Mariana Trench was formed by the process of subduction. The interior of the earth or the mantle is composed of lava. The solid crust of the earth which are in pieces are on top. Sometimes the lava from the mantle rises up through the cracks in the crust. This either causes pieces of the crust to be pushed together or apart. So when the oceanic crust which is heavier is pushed against the continental crust which is lighter, the oceanic crust is pushed to the bottom and the continental crust to the top. Then oceanic crust or subducted crust forms the trench.
The deepest point in the Mariana Trench and in the oceans is Challenger Deep which is three hundred and forty kilometers off the coast of Guam. Challenger Deep was named after the HMS Challenger II who discovered the point in 1948. In 1960, Jacques Picard and Navy Lieutenant Donald Walsh took the bathyscaphe Trieste into Challenger Deep. They took the Trieste into the deep ten thousand nine hundred and fifteen meters
2006-11-13 22:39:21 · answer #2 · answered by bindasmeapu 2 · 0⤊ 0⤋
The deepest known spot on the planet is called the Challenger Deep, found at the bottom of the Mariana Trench east of the Philippine Islands in the Pacific Ocean. Sounding of the depths in the Mariana Trench measure 11,033 meters (36,198 feet). This is approximately 2180 meters (7152 feet) deeper than the tallest mountain on the Earth’s surface, Mount Everest (8,846 meters: 29,022 feet)! (Source: NOAA)
2006-11-13 20:20:59 · answer #3 · answered by mr.maths 2 · 0⤊ 0⤋
About 11 kilometres (10.923 kms. if you want to be exact). The point is called challenger deep. It is off Marianas islands in pacific ocean. To put the depth in perspective, if Mount Everest was to be placed in this depth, there will still be 1 kilometre of water above the tip of highest mountain on earth!
2006-11-13 20:24:37 · answer #4 · answered by Geepee 5 · 0⤊ 0⤋
I think 11 kilometers in the pacific ocean
2006-11-14 01:18:23 · answer #5 · answered by Berhane Gebreyesus Habtu 4 · 0⤊ 0⤋
Ther are many points in the ocean that are still immeasurable with the current tools that we have now
2006-11-13 20:20:34 · answer #6 · answered by whay i lost my ?s 6 · 0⤊ 0⤋
The Marrianna Trench. It's deeper than everest is tall!
2006-11-13 20:19:59 · answer #7 · answered by Anonymous · 0⤊ 0⤋