Seismic
Risk & Earthquakes Lab Help
Problem 3: Use the map on p. 117
a. How to construct an isointensity
contour map.
b. You may use the graph provided
or your own lined paper to show how the intensity varies with distance
from San Fernando (where the sevens are concentrated). The Y-axis
will represent intensity, the X-axis will represent distance from San
Fernando.
Problem 5: What do you think
can be done based on what you have read about earthquakes in the text and
lab books. Problem
6: Use the map on page 120 and what you have learned about how
different materials respond to seismic shaking. Hint: The text book
(p. 141-145) includes a discussion of this topic that includes
figures. Pay particular attention to the type of material and the
thickness of that material.
- Grey areas have little or no soil on
bedrock.
- Tan areas are sediments such as sand and
gravel deposited by rivers (alluvium). The contours within the
tan show how thick this this material is.
- Green areas are sediments such as silt
and clay deposited in swamps. The contours within the green show
how thick this this material is.
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