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Earthquakes are natural processes that occur beneath the earth's surface and, if strong enough, their reverberations can not only be felt by humans but can induce significant damage to the environment. Scientists are con... More »

www.reference.com Science Earth Science Earthquakes

A person who studies earthquakes is known as a seismologist. In addition to studying earthquakes, a seismologist also studies different vibrations in the Earth. These specialists use sophisticated tools, such as seismogr... More »

www.reference.com Science Earth Science Earthquakes

The surface of the earth is called the crust, and it is made up of plates, called tectonic plates, that move. Earthquakes happen when these plates bump, scrape or drag against each other. More »

www.reference.com Science Earth Science Earthquakes
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The BBC explains that, in addition to a significant human death toll, earthquakes destroy the environment in the surrounding area by causing fires, tsunamis and landslides. While these events have relatively short-term e... More »

www.reference.com Science Earth Science Earthquakes

As of 2014, estimates suggest that over 500,000 earthquakes occur each year, and 100,000 of these are strong enough to be felt by humans. Since 1900, there has been a global average of 18 major earthquakes, and one giant... More »

www.reference.com Science Earth Science Earthquakes

Approximately 1,500 earthquakes are recorded in Japan every year. The magnitude of each earthquake varies, and larger earthquakes between 4 and 7 on the Richter scale regularly occur. Records from the early 1990s indicat... More »

www.reference.com Science Earth Science Earthquakes

The Chinese seismograph was an instrument developed in 132 A.D. by the Chinese philosopher Chang Hêng to detect earthquakes and determine the direction from which they came. It was a brass instrument decorated with eight... More »

www.reference.com Science Earth Science Earthquakes