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HIGH SCHOOLS COLLECTING AND EXCHANGING EARTHQUAKE DATA
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The IRIS Seismographs in Schools (SIS) program provides middle, high school and IRIS Affiliates with an AS-1 seismograph (shown) that can be used to demonstrate the basic principles of recording ground motions and record regional and teleseismic earthquakes. Software is provided to collect, display and exchange earthquake records. although the AS-1 is extremely simple and has relatively low gain and limited frequency response, in reasonably quiet locations it is capable of recording magnitude 6 or larger earthquakes anywhere in the world. many school installations record up to ten events or more a month. More than 170 middle and high school seismographs are operating in the US, and partnerships with similar groups in Europe and other parts of the world have led to an informal network of more than 375 stations. IRIS has developed a web site and forum for discussion that is actively used to exchange data, observations and ideas between schools.</p>

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