1. What are the necessary criteria for proper measurement of an epicenter location? Are there any limitations in this virtual lab that make finding the exact epicenter of an
earthquake more difficult?
2. How will knowledge of an earthquake epicenter help emergency management teams
make better earthquake response plans?

For the first I can't answer because of I don't know exactly what kind of question is that. But I'mma answer the second one.

2. An earthquake is sudden, rapid shaking of the ground caused by all 50 states, five U.S. territories in the district of Columbia are at some risk for earthquakes. When the accumulated energy grows great enough, the plates break free and emergency supply kits, training, and impleading preparedness plans.

the correct answer is b