Hazard City: Earthquake Hazard

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GLG111 Lab 5 Exercise:

Thank you, Ms. Leona Graham (mayor), for the opportunity to provide an assessment report for Hazard City. This report will provide an assessment on structural damage of an Intensity IX earthquake, and emergency housing needs. It will also identify actions homeowners can use to help prevent future structural damages, and give more information on possible effects of an Intensity IX earthquake. The assessment report will identify danger of a failing dam, and provide further understanding of the elements which will include an emergency plan. The table that follows is an assessment of the number of people needing emergency housing due to an Intensity IX earthquake.

ResidentialNeighborhood | Percentage of
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Because of the lack of reinforcement, it could result in considerable damage to the whole building or specific sections of it. Another potential hazard is the damage that may occur between the walls, roof, and floor diaphragms. The separation that occurs between the framing and the walls can jeopardize the vertical support, which could lead to the collapse of the structure. This is why Downtown has 70% of homes that will be uninhabitable after an Intensity IX earthquake. Hickory Estates is a community where buildings in the 1920’s through the 1940’s where build very quickly. This community has sloping streets, and is located above the Clearwater River. This area has single-family homes constructed with multistory, and wood-framed built homes. The population of this community is 6412 residents. Due to the era the homes were built in, a typical problem is the connection between the wood frame and the foundation. The lack of steel reinforcement can cause major damages due to its weak points0. An earthquake can cause the wood frame to come off its foundation, foundation cracks, the chimney breaking at the roof line, and the cripple walls (the walls between the top of the foundation and the floor diaphragm) to crack. This is why Hickory Estates has 8% of homes that will be uninhabitable after an Intensity IX earthquake. Ralston is a community of large wood-framed
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