GEOL 106 Lecture 4: 02:10:2017 - Earthquake Risk Analysis & Management Cont'd (What Causes Damage & Determining Risk)

• School: Queen's University
• Department: Geological Sciences and Geological Engineering
• Course: GEOL 106
• Professor: John Hanes

Document Summary

Nature of soils and rocks in the areal nature of the strucs that we build: surface faulting. If the building is right on the fault it can be torn apart; disrupted by the tearing motion: don"t build on active faults - people still do however ex. In a big earthquake shaking can be severe even 100"s of kms away from epicenter. House w/ ground shaking, in one corner there"s a bureau, one leg didn"t haave protective cup nail scratched floor and showed the moving of the bureau. So the amount of shaking depends on nature of rocks/soils in the area ex. Loma prieta eartquake near san fran in 1989 which was 100km away. Look at effect of ground shaking in sf - solid rock at surface, then sandy alluvium, followed by bay mud closest to water (what used to be bottom of bay) 1985 earthquake near acapulco and the effects on mexico city (8. 1m)