Question

1. WHAT ARE SEISMIC WAVES?

2. WHAT IS FOCUS OF AN EARTHQUAKE?

3. WHAT IS AN EPICENTRE?

Answer 1

$\large\text{QUESTION-}$

WHAT ARE SEISMIC WAVES?

$\large\text{ANSWER-}$

The earthquakes produce waves on the earth surface which are called seismic waves. These waves travel in all the directions on the Earth's surface.

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$\large\text{QUESTION-}$

WHAT IS FOCUS OF AN EARTHQUAKE?

$\large\text{ANSWER-}$

The focus of an earthquake is a point inside the earth’s surface where the earthquake originates. It is also called hypocenter.

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$\large\text{QUESTION-}$

WHAT IS AN EPICENTRE?

$\large\text{ANSWER-}$

The epicentre is a region on the earth’s surface that lies just above the focus of the earthquake is called epicentre. The earthquake does not originate from the epicentre.

Answer 2

Answer:

1. seismic waves are waves of energy that travel through earth's layer, and are a result of earthquake, volcanic eruption, magma movement, large landslides and large man - made explosions that give out low frequency acoustic energy. many other natural and anthropogenic source create law - amplitude waves commonly referred to as ambient vibration seismic waves are studied by geophysicists called seismologists. seismic waves fields are recorded by a seismometer, hydrophone (in water), or accelerometer.

2. The point of which fault sleeping begins is referred to as the focus of the earthquake. the fault rupture begins at the focus and then expanse along the fault ruptures unilaterally (with the epicenter at or near the end of the fault break ) the waves are stronger in one direction along the fault.

3. the epicenter, epicentre or epicentrum in seismology in the point on the earth's surface directly above a hypocenter of focus the point where an earthquake or an underground explosion originates.

Explanation

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