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Preparing for the possibility of an earthquake can save lives and make disaster recovery efforts more effective.
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Earthquakes happen all the time. There are probably several happening right now at different places around the world. But they're all small ones, and are mostly not noticed. We only know about most of them because we have electronic instrum...
http://wiki.answers.com/Q/How_often_do_earthquakes_occu...
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Earthquakes in California It depends on where you are talking about. Along the San Andreas fault, a major earthquake occurs about every 100 years. Earthquakes are caused by plates of Earth rubbing together. hahahahahahahahahahahahahahah
http://wiki.answers.com/Q/How_often_and_why_do_earthqua...
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How Often Do Earthquakes Occur? IRIS is a university research consortium dedicated to monitor- ing the Earth and exploring its interior ...
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www.iris.edu/edu/onepagers/no4.pdf
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No. 1. Watch Earthquakes as they Occur: An Introduction to the Seismic Monitor ... No. 2. Why do Earthquakes Happen? ... No. 3. How Often do Earthquakes Occur?
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www.iris.edu/hq/publications/brochures_and_onepagers/ed...
www.iris.edu/hq/publications/brochures_and_onepagers/edu
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Earthquakes occur all the time all over the world, both along plate edges and along faults. ... Most earthquakes occur along the edge of the oceanic and continental plates. The earth's crust (the outer layer of the planet) is made up of several pieces, called plates. The plates under the oceans are called oceanic plates...
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www.geo.mtu.edu/UPSeis/where.html
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IRIS Educational Series #3: How Often Do Earthquakes Occur? ... How Often Do Earthquakes Occur? ... Large earthquakes occur about once a year. Smaller earthquakes, such as magnitude 2 earthquakes, occur several hundred times a day. To create a mountain system might take several million medium size earthquakes over tens...
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www.mgs.md.gov/seismics/edu/no3.html
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Earthquakes often occur along the boundaries between colliding plates, and molten rock from below creates pressure that is released by volcanic eruptions, helping to build up mountains. Under the ocean basins, molten rock may well up between separating plates to create new ocean floor.
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www.project2061.org/publications/rsl/online/COMPARE/NRC...
www.project2061.org/publications/rsl/online/COMPARE/NRC/BSL2NRC/CH4/B_NRC173.HTM
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Earthquakes are always occurring somewhere in the world. Millions of small (too small to be felt) earthquakes happen every year, while major earthquakes happen, on average, about once per year. The graph above shows the relative frequency o...
http://earthquakescanada.nrcan.gc.ca/info-gen/magfreq-e...
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