Q36
The focus of an earthquake is defined as:
A.
Point on the Earth's surface directly above the origin
B.
Point of rock rupture beneath the Earth's surface
AnswerC.
Highest affected area
D.
Deepest point in a fault zone
Answer: Option B
Solution
Answer: Option B
Solution:
The focus is the point within the Earth where an earthquake originates due to sudden energy release.The point above it on the surface is called the epicenter.