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Define Earthquakes and explain the types of earthquake waves

Define Earthquakes and explain the types of earthquake waves.

Answers

-Sudden and rapid movement of the earth’s crust.

-areas prone to them are called seismic zones and those not prone are called aseismic zones.

It’s caused by shock waves.

There are 3 types of earthquake waves namely:

1. Primary waves-which travel fastest and cause the rock particles to vibrate in a push and pull manner and can pass through gases, liquids and solids.



Earth quake originates from a point known as seismic focus/origin.
The part of the earth vertically above the seismic focus and where the shock waves are first experienced is called epicentre.

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marto answered the question on March 25, 2019 at 07:21

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