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Earthquake Essays

San Francisco 1906 Earthquake

Posted: July 19th, 2007 | Author: admin | Filed under: History | Tags: , , | Comments Off

One of the greatest earthquakes happened in 20th century is in San Francisco in year 1906. It measured 7.8 degrees.  Many building were destructed and several hundred of people got killed.  The earthquake also started a fire, which destroyed the central business district.
 
The earthquake happened on the San Andreas Fault, which is the major fracture [...]

Internal Structure of the Earth

Posted: June 27th, 2007 | Author: admin | Filed under: Places | Tags: , | Comments Off

What is the evidence for our knowledge of the internal structure of the Earth?
As we enter the twenty first century we are beginning to learn more and more about the composition of the Earth.