One of the most frightening and destructive
phenomena of nature is a severe earthquake and
its terrible after effects Earthquakes are the result
of forces deep within the earth's interior that
continuously affects the surface of the earth. The
energy from these forces is stored in a variety of
ways within the rocks. When this energy is
released suddenly, an earthquake occurs. The area
of the fault where the sudden rupture takes place
is called the focus or hypo-centre of the
earthquake The point on the earth's surface
directly above the focus is called the epicentre of
the earthquake. The effect of an earthquake on the
earth's surface is called the intensity. The intensity
scale consists of a series of responses such as the
number of people who woke up, movement of
furniture, damage to chimneys and finally total
destruction. The magnitude of 53 might be a
moderate earthquake, and a strong earthquake
might be rated with the magnitude 6.3. An
earthquake in a densely populated area which
results in many deaths may have the same
magnitude but acts only as a shock in a remote
area that does nothing more than frightening the
dife
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