Saturday, December 17, 2011

FOR KIDS: Eastern quakes can trigger big shakes

Scientists study the widespread impacts of tremors east of the Rockies

Web edition : 10:52 am

The most dangerous type of natural disaster, and also the most unpredictable, is the earthquake.?In the first week of November 2011, people in central Oklahoma experienced more than two dozen earthquakes. The largest, a magnitude 5.6 quake, shook thousands of fans in a college football stadium, caused cracks in a few buildings and rattled the nerves of many people who had never felt a quake before. Oklahoma is not an area of the country famous for its quakes.

Although less expected than quakes in California and Alaska, these ?mid-plate? tremors can do substantial damage. Some of the biggest known examples, centered over Missouri,?rattled the eastern half of the United States two centuries ago. Today, scientists are still puzzling over what triggered past quakes in these places?? and when similar ones might strike again.

Visit the new?Science News for Kids?website?and read the full story:?Eastern quakes can trigger big shakes


Found in: Science News For Kids

Source: http://www.sciencenews.org/view/generic/id/336842/title/FOR_KIDS_Eastern_quakes_can_trigger_big_shakes

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