Question

When a pebble is thrown into a pond, disturbances are produced at the point of interaction and spread out away
from this point of interaction over the surface of water. In the same manner, waves during earthquake move
outwards from a point on the earth surface,
a) Name these waves and the point on the earth surface.
b) How the intensity of the earthquake vary with the distance from the above mentioned point?
c) What is the point of the origin of earthquake called?
d) Also name the instrument used to find out the source of earthquake?​

Answer 1

Answer:

Earthquakes occur when energy stored in elastically strained rocks is suddenly released. This release of energy causes intense ground shaking in the area near the source of the earthquake and sends waves of elastic energy, called seismic waves, throughout the Earth.

Answer 2

Answer:

Explanation:When a pebble is thrown into a pond, disturbances are produced at the point of interaction and spread out away

from this point of interaction over the surface of water. In the same manner, waves during earthquake move

outwards from a point on the earth surface,

a) Name these waves and the point on the earth surface.

b) How the intensity of the earthquake vary with the distance from the above mentioned point?

c) What is the point of the origin of earthquake called?

d) Also name the instrument used to find out the source of earthquake?​