![]() Nearly three-quarters of the primary and secondary schools in Oregon were built before the first statewide building codes were enacted in 1974 and nearly twenty years before the most modern codes were put into effect in 1993. In order to mitigate such a disaster, Oregon has recently developed earthquake safety policies to help address this seismic problem on the community level. This inevitable future disaster puts thousands of lives at risk, not to mention the critical infrastructure and buildings, many of which were built before today’s building codes were put into effect. The last earthquake produced by this fault was in 1700, and as a result of pressure build up, it is expected to produce a quake as large as a 9.0 on the Richter scale (the most recent quake of that magnitude caused the devastating tsunami in the Indian Ocean on December 26, 2004). Geologic evidence suggests eighteen prehistoric earthquakes along this fault. As a result of its enormous size, this fault is capable of producing devastating earthquakes. OREGON - The Cascadia Subduction Zone Fault is a long sloping fault located off the West coast of the United States which stretches from mid-Vancouver to Northern California. ![]()
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