The crust of the Earth is thickest beneath the continents. The thinnest areas are beneath the oceans. Average thickness varies greatly depending on geography and whether the crust is continental or oceanic.Continue Reading
The continental crust, or the crust that lies beneath the continents, usually ranges from around 30 to 45 kilometers thick. These thicknesses are found on most continents and are dependent on height above sea level and mountainous regions. Although there are rare areas that exceed 70 kilometers thick, according to the United States Geological Survey, or USGS, less than 10 percent of the total area of the Earth's crust exceeds 50 kilometers thick.
Thicknesses below 30 kilometers are typically only found under the ocean and are called oceanic crust. The thinnest sections of the crust are only approximately five kilometers thick, which is a small fraction of the thickness of the thickest parts of the continental crust. The thickness of oceanic crust is difficult to estimate by looking only at proximity to continents or latitude, since the crust varies greatly from coast to coast and everywhere in between. For example, along the eastern coast of the United states, the oceanic crust ranges from 10 to 30 kilometers thick, according to the USGS.Learn more about Maps & Cartography
The earth's crust is between three to five miles deep under the oceans (oceanic crust) and about 25 miles deep under the continents (continental crust). This is very thin in comparison to the other layers of the planet.Full Answer >
The South Pole is the southernmost point on Earth's surface and is located in Antarctica at 90 degrees south latitude. Due to the extreme location of the South Pole, the sun shines 24 hours per day during the summer and is never visible during the winter.Full Answer >
The prime meridian is what divides the Earth into Eastern and Western hemispheres. This is a line of longitude with a measurement of 0 degrees.Full Answer >
The Earth's Northern and Southern Hemispheres are divided by the equator, which is an imaginary line located at 0 degrees latitude. The Northern Hemisphere consists of most of Asia, northern South America, Europe, North America and two-thirds of Africa's landmass. The Earth's Southern Hemisphere is comprised of Antarctica, one-third of Africa, Australia, a small number of Asian islands and much of South America.Full Answer >