Question

2.The EPICENTER of the 9.0 magnitude quake was under the Indian Ocean near the west coast of the Indonesian island of Sumatra . . . (from “The Deadliest Tsunami in History?”) Find the possible meaning of the capitalized word.
size
original source
point of earth directly above
power

Answer 1

The closest meaning of the capitalized word is the point of earth directly above. According to its definition. 

Answer 2

The closest meaning of the capitalized word is the point of earth directly above.According to its definition. I hope that this helps.