Answer:
I am assuming you want answers to number 4:
California has greatest Earthquake Damage
Wyoming has greatest Volcano Damage
This information affects where urban planners and engineers build new cities or buildings, and how they build them. They wouldn't put a house on an active volcano, and if they are building something near a fault line, they should be sure to reinforce their structure and take extra precautions.
I believe it is D, all of the above
Earthquakes generate compressional waves (p-waves) and shear waves (s-waves). Compared to the speed of shear waves in a given earth material, the speed of compressional waves is the fastest.
Because of this the compressional waves are the first waves to arrive on a complete record of ground shaking. They are also called P waves, which derives from this fact - P is an abbreviation for primary, first wave to arrive.<span>They typically travel at speeds between ~1 and ~14 km/sec.</span>
