100+ UPSC, SSC, Banking Earthquakes Questions and Answers - 1

Question: 1

What are the harmful effects of Earthquakes?

i. A major earthquake can cause enormous damage no matter where in the world it strikes.

ii. People and animals are killed.

iii. Buildings, bridges, roads and sewer systems can be destroyed.

iv. Landslides and fires are triggered.

Question: 2

What are earthquakes?

Earthquakes are a form of wave energy that is transferred through bed rock. It is transmitted from the point of focus, as spherical seismic waves. They travel in all directions outward.

Question: 3

What are the two types of seismic waves?

Body waves and surface waves are the two kinds of seismic waves.

Body waves are seismic waves that travel through the lithosphere. Two kinds of body waves are P-waves and S-waves.

Surface waves travel at or near the Earth’s surface. These waves produce a rolling or swaying motion causing the Earth’s surface to behave like waves on the ocean.

Question: 4

What are seismic waves?

Earthquakes are measured, based on the power of the shock waves they create. These waves are called seismic waves. They can be measured from for away.

Question: 5

Write short note on P-waves and S-waves?

P-waves or primary waves are formed by the alternate expansion and contraction of bedrock.

S-waves or secondary waves are a second type of body waves. These waves are slower than P-waves and only move through solid materials.