Science projects are underway. I have provided a couple of links for you. The first is to Discovery Education with a full experiment on Constructing Earthquake-Proof Buildings- it is based on 6-8 Grade Level. It includes, the Objective, a Material List, Procedures, Adaptations, Discussion Questions, Evaluation, Extension, Suggested Reading, Other Useful Links on the subject and an Audio Vocabulary.
The second link goes to Earthquake Building Science Fair Projects & Experiments from grade levels 4th - 12th.
Maybe one of these will provide you with all the information you will need to complete this project successfully. Have fun & good luck!