Earthquake Damage Assessment - Solution

An earthquake on the Twin Fork Fault affected Hazard City in 1897. The earthquake produced effects in the town that can be rated on the Modified Mercalli Intensity Scale.

The Earthquake Damage Assessment project was a simple percentage problem. Your goal was to estimate the number of people in five neighborhoods who would need emergency housing if a similar earthquake would occur today.

Residential Neighborhood
Percentage of homes uninhabitable
Number of People Needing Emergency Housing
Downtown
70%
1362
Hickory States
6%-7%
448-512
Ralston
7%-8%
44-51
Riverside
90%
394
Walnut Heights
1%-2%
24-48

This required a four-step process:

You could find the population of each neighborhood by clicking that neighborhood on the city map and reading the community profile
The community profile also contained information about the types of houses present in the neighborhood
Clicking on "Building Response" allowed you to look up the percentage of different building types that would be uninhabitable after a IX Mercalli event
Finally, you multiply the percentage of uninhabitable dwellings by the population of the neighborhood. That number should be your estimate of the number of people needing emergency housing