C1. The Loma Prieta earthquake caused no significant damage at location X, but t

Question

C1. The Loma Prieta earthquake caused no significant damage at location X, but there was moderate damage to buildings at location Y and severe damage at location Z. Explain how this damage report compares to your above prediction of risk.

C2. The Loma Prieta earthquake shook all of the San Francisco Bay region. Yet Figure 16.3 is evidence that the earthquake had very different effects on properties located only 600 m apart. Explain how the kind of substance (uncompacted vs firm and compacted) on which buildings are contracted influences how much the buildings are shaken and damaged in an earthquake.

Explanation / Answer

Ans C2. San Francisco is a tectonically active region that's why it exprience many number of earthquakes. But these earthquakes have different effects in different areas because in San Francisco buildings are stand on varied type of foundations for eg. hard compact Franciscan Sandstone, uncompacted beach and dune sands, river gravel, and artificial fill, so the buildings on uncompacted beach and dune sands, river gravel, and artificial fill are the prone ones of having severe damage. the above different effects can be explained by "Liquefaction", a process by which sediment with water-saturation temporarily loses strength and acts as a fluid and this effect can be caused by earthquake shaking.

Q. C1 is an incompelete question.

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.