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In 1960, the largest earthquake ever recorded
hit Chile, with a magnitude of a whopping
9.5.
An earthquake that strong releases as much
energy as 27 trillion kilograms of explosives!
That’s a lot of power, but how much damage
can an earthquake do?
Let’s start with a quick course in Earthquakes
101.
These natural phenomena occur when two pieces
of the Earth’s crust called tectonic plates
slide past each other.
When this happens, pent up energy from inside
the Earth suddenly bursts out in all directions.
The Earth cracks and shakes everything on
top.
Earthquakes used to be measured on the Richter
Scale, but now they use the Moment Magnitude
Scale to designate a magnitude level for each
quake between 1 and 10.
There are about half a million detectable
earthquakes every year all over the world,
but most of them aren’t even felt and only
about 100 of them actually cause damage.
But when they do, they can flip the world
upside down for that area.
Not literally, but you know what I mean.
Earthquakes can strike any area at any time
and there’s absolutely no way to predict
them.
Since people can’t prepare their families,
their homes, or their businesses, earthquakes
can cause serious damage out of nowhere.
As soon as an earthquake hits, buildings can
topple, bridges can collapse, gas lines can
explode, and water and sewer pipes can burst..
This immediate damage can be catastrophic
and deadly but the mayhem’s not over yet.
Earthquakes can cause secondary effects like
tsunamis, landslides, and fires.
And, there’s also the aftershocks.
They can happen right after an earthquake
or occur weeks, months, or even years later.
These secondary effects account for 40% of
economic losses and deaths, so they shouldn’t
be taken lightly.
Major illnesses can also arise from earthquakes,
from things like burst pipes and poor sanitation.
Even if a region is reeling from Mother Nature’s
fury, illnesses like respiratory tract infections,
water-borne diseases and wound infections
can ravage the area.
The massive 2010 Haitian earthquake brought
back the disease Cholera to a region that
hadn’t seen it in 100 years.
The amount of physical and bodily damage from
an earthquake depends on a lot of factors.
Time of day, time of year, population, building
style, climate, and location.  A major,
oceanfront city struck by a magnitude 7 earthquake
during rush hour in the middle of the winter
would theoretically cause a lot more damage,
injury, and death than a similar earthquake
in the middle of nowhere at the crack of dawn
on a summer day.
But, more isolated areas typically don’t
have the communication systems or emergency
responders to handle disasters as effectively
as more populated regions.
Architects in places that are prone to earthquakes
design their buildings to withstand the seismic
waves that come with quakes.
Buildings sway as this energy makes its way
through the structure, which could lead you
to believe that a skyscraper would be susceptible
to more damage than a regular height building,
but you’d be wrong.
Taller structures are actually more flexible
and can bounce back from the waves easier.
Just like you can when you sway with a moving
train or boat, rather than standing straight
and rigid.
All these factors play a part in how much
damage an earthquake causes.
And the cost of this damage can add up quickly.
2011 was one of the years with the worst financial
losses caused by earthquakes on record.
A whopping $365 billion dollars worth of damage.
Are there any other natural disasters you want us to cover? Let us know in the comment section below.
curious to know how our monuments like the statue of liberty will last over time?
check out this video!
The monument’s insides are made of iron, kind of like a skeleton, so that it can withstand strong winds.
Fun fact: the outside copper layer is only as thick as putting two pennies together!
as always, my name is Blocko.
This has been Life Noggin!
Don't forget to keep on thinking!
