Jumat, 25 Juni 2010

Today’s Earthquake Fact

Today’s Earthquake Fact

Thousands of earthquakes occur every day around the world, although most are so small they can only be detected by sensitive seismographs. As more and more seismographs are installed, more earthquakes can be and have been located. However, the number of large earthquakes (magnitude 6.0 and greater) that occur each year has stayed relatively constant.

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