GEOLOGY

EARTH SCIENCE

EARTHQUAKES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The focus of an earthquake is
A
The point (below Earth’s surface) where rock breaks
B
The closest seismic station
C
The place where the greatest damage occurs
D
A fault
Explanation: 

Detailed explanation-1: -The location below the earth’s surface where the earthquake starts is called the hypocenter, and the location directly above it on the surface of the earth is called the epicenter.

Detailed explanation-2: -The point beneath Earth’s surface where rock under stress breaks to cause an earthquake is called the focus. The point on the surface directly above the focus is called the epicenter. During an earthquake, vibrations called seismic waves move out from the focus in all directions.

Detailed explanation-3: -Answer is C. The point where the waves originate is called the focus of the earthquake. The point within the earth along the rupturing geological fault where an earthquake originates is called the focus, or hypocenter. The point on the earth’s surface directly above the focus is called the epicenter.

Detailed explanation-4: -The spot underground where the rock first breaks is called the focus, or hypocenter of the earthquake. The place right above the focus (at the ground surface) is called the epicenter of the earthquake.

Detailed explanation-5: -The focus is point inside the earth where the earthquake started, sometimes called the hypocenter, and the point on the surface of the earth directly above the focus is called the epicenter.

There is 1 question to complete.