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The White House 1600 Pennsylvania Ave. NW Washington, DC 20500 January 16, 2006 Dear Mr. President, Thank you for putting me on your committee. All the questions that you have asked are answered in the report below. From our recent studies, earthquakes are most likely to occur around coast lines. Some examples are as followed. The West Coast of North and South America, the East Coast of Europe and Asia, as well as Oceania. These are examples of broad areas, some of the lesser sections are the Fijian region, Chillán area, Japanese region, and the Mid-Atlantic ridge. It is not completely impossible to find where earth quakes are most prone. We simply study where most of the earth quakes occur. Take a place such as the San Francisco Bay area of California. They are on a plate boundary. Lots of earthquakes are happening there. These two plates are active. We at the U.S.G.S. believe that there is a relationship between volcanoes and earthquakes. However, we are still in the process of determining to what extent. It has something to do with the lava and the plates. And to answer your final question, earthquakes occur by the rubbing of tectonic plates. One plate wants to go one way, while the other goes the other way. The vibrations we feel in an earthquake are the plates shifting against each other. The severity of the quake is determined by the amount of shift and the depth of the plate. Again we at the U.S.G.S. thank you for your funding, and hope that we can count on your continued support! Sincerely, Hannah The Lead Scientist at U.S.G.S.