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Exercise 2 Post

Exercise 2 Post - earthquake Most of the zoned faults...

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Exercise 2 Hayward Fault Post-Exercise Assignment Jong Park (J.P.) 1. As defined by the 1972 Alquist Priolo Act, the earthquake fault zones are regulatory zones around active faults. The zones are about one-quarter mile on wide on average. 2. One regulation is that no building can be constructed over the trace of the fault. A geologic investigation, an evaluation and a written report must be prepared by a licensed geologist. The material and size of a building must be investigated before being built. (“Single family wood-frame and steel- frame dwellings up to two stories not part of a development of four units or more are exempt.”) 3. The provision of creating special earthquake fault zones significantly prevents city-wide damage due to
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Unformatted text preview: earthquake. Most of the zoned faults display evidence of repeated displacement over a long period of time. Without regulation, structures for human occupancy in the large areas around numerous faults will be built and endanger much larger number of people than that under the regulation. 4. The approximate average yearly movement along the Hayward Fault as detected through measurements of damage on the Memorial Stadium is 1.2mm per year. The existing offset in the stadium 3.3858 ft can be divided by 86 years, which is the number of years the Stadium has been built. Then, the number can be multiplied by 304.88mm to get the average yearly movement in units of millimeters per year. 5....
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