Earth
Quakes and Its Aftereffects
An earthquake occurs
when there is a movement or dislocation of a variety of ground materials
beneath the outer layer of earth or within its crust. Different chemical
reactions cause creating of a force that pushes on a pile of rocks. It damages
the friction between rocks, which prohibits them to slip and holds them
together. This may become a reason of earthquakes. They are different in
intensity and magnitude, some of them may be slight, while other may be violent
and destructive that can bring enormous damage to human life, property and
infrastructure. There might be various stresses beneath the earth’s front surface.
Stresses usually are built up until the rocks crack within a “fault plane” (Hyndman, 2010). This may cause vibrations,
are normally called seismic waves. These waves travel in all directions from
the area of crack. In high magnitude earthquakes seismic waves can be detected
over the entire surface. There are some other reasons as well, such as
volcanoes, nuclear explosions etc.
Earthquakes not only
destroy buildings and bring floods but they can cause an underwater earthquake,
which is called tsunami, which can be more devastating and lethal. There are
having been severe tsunami earthquakes in 2004, which was spreading over coasts
of many countries and a recent example of Japan’s tsunami in 2011. which killed
more than 16 thousand people according to the national police agency of Japan.
To
prevent life damages from earthquakes, it is important to do Drop and Cover. It
means to fall on the floor and lay under something for safety. When earthquake
is occurring, try to remain calm and take shelter under concrete and multilayer
objects. If you someone is caught outside during earthquake, it is import to
stay away from building and objects that may fall down. There might be
aftershocks, so be ready and take necessary protections.
ALso in the blog earlier we have posted a video on how to prepare for an earthquake
By: Abdulkreem Almazyad
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