Earthquakes
Forces That Build and Destroy The
Earth
By: Emily
Breaking
News
Okay I understand that you
want to read about earthquakes but
you need to pay you’re subscription.
Thank you , now lets talk about
earthquakes!
Do you
even know what a earthquake is?
An
earthquake is a natural event when
the earths crust shakes or vibrates.
There is also plate tectonics which is a
theory that explains the origin of the
Earth’s surface. Plate tectonics are
the thirty plates or pieces of land on
the Earth’s surface. Plate tectonics get
their name from the Greek word”
tecton” meaning builders. These
plates move by relevating to each
other.
The number of
earthquakes in a year is five thousand
to fifty thousand! If you live in a
urban area you could have
devastating damage.
To have a better
understanding of earthquakes we
need to learn about faults.
This 1906 earthquake in San Francisco caused major damage
to the city of San Francisco.
•
Don’t Cry its not
you’re fault!
Let’s talk faults and
earthquakes!
A fault is a area of stress
in the Earth’s surface. Or when two
parts of the crust slip from each other.
Plus when the rocks slide past each
other, causing a crack in the Earth’s
surface.
Here
are some types of faults Dip-slip,
normal, dip-slip reverse, strike-slip,
and finally oblique-slip. Also faults can
move during an earthquakes.
Faults occur at plate
boundaries. They can also occur
through the tectonic plate.
Do you
know what a fault zone is? Well, its
where the Earth’s crust is broken.
Do you know what a fault zone
is?
Well, faults are set off by the
movement of the tectonic plates.
Well,
this is al I have to say about what
faults are. So with that let’s learn about
how a scientist would measure
earthquakes without using weight.
Movement of the Denali Fault caused this tree to split.
•
No weight, just
mathematics
Kid: Richter!!
Me: Mercalli!
Oh,
sorry. I didn't see you there. I was just
finishing up telling this kid to get lost and to
tell all of his friends that the Richter scale
rocks but he refused to.
But I need to tell you
how to measure earthquakes. I know you
want to know, but you’re just standing here
breathing out loud waiting for me to tell you
on how earthquakes are measured.
First let me tell you the two types of
units to measure earthquakes. They are the
Mercalli and the Richter scale. The most
recognized scale is the Richter. When
scientists measure they use several laser
devices.
Now back to the history of the Richter
scale.
Charles Richter invented the Richter
scale. He wanted to use a mathematical
scale to measure earthquakes. The Richter
scale measures the magnitude of an
earthquake. A higher number on the Richter
scale means the bigger the earthquake and
damage. Scientists use a mathematical scale
called logarithm, this measures the
earthquakes power.
Well that’s all I know
about earthquakes but keep reading to find
out what a tsunami is!
This is a picture of Charles Richter, he invented the
Richter scale.
•
No more tidals
When you see a big wave while
you’re at the beach run! Because if you
don’t you may never see the light of day
again.
First let me tell
you the three stages of a tsunami.
First the generation or when the
earthquake or event that causes a
tsunami. Next propagation or how the
waves of the tsunami move or spread.
Last nut not least, inoculation or the
flooding when the tsunami hits or strikes.
If you want to know what a
tsunami is set off by I’ll tell you. It is set
off by a submarine earthquake, landslide,
volcanic eruption, and finally asteroid
impact.
Now if you would kindly explain
what a tsunami is. A tsunami is a series of
powerful monstrous ocean waves.
Tsunamis can travel great distances, plus
retrain power and strength. Tsunami
comes from the Japanese language
meaning tidal wave when it isn't. If a
tsunami hits the coastline it can drown it!
And so tsunamis occur near coastlines.
Did you know that one tsunami can
be fifty feet tall and can travel across the
entire Pacific Ocean!
This is
how tsunamis come from underwater
earthquakes.
Now
we will read about who San Andreas is.
This is a result of a tsunami. If a earthquake occurs and
you’re in or near a coastal area turn on a radio and listen
for a tsunami warning.
Who’s San
Andreas a boy
or a girl?
Miss- I-know-everything
about San Andreas is wrong
she’s not even a person.
Most earthquakes happen
in California because of the San
Andreas fault.
It is a fault line that
starts in California and travels to
Baja, Mexico. That’s big!
This fault is
also a fault zone. If a crack hits
the San Andreas fault there will
be a earthquake. Well, if you
want to learn more on the San
Andreas fault you my friend need
to consult with a encyclopedia.
Next up, do
earthquakes cause big bills or a
big break?
•
This is a picture of the San Andreas fault line in California.
•
Big bill or big
break?
Ever wonder if
earthquakes cause big bills or
a big break.
Well, keep
reading to find out. An
earthquake destroys the earth
because the ground breaks.
Do
earthquakes build? Yes they
do!
Earthquakes also build
because when two plates push
each other. This helps build
hills and mountains.
Well, that’s
all of my writing read my
glossary next!
The great San Francisco earthquake in 1906 caused
major damage. It was a 8.2 on the Richter scale and it
was the biggest earthquake to hit the San Andreas fault in
the last 200 years!
Glossary
California- a state of the west
coast. California is usually recognized
for its beaches.
Earth- the planet where you are
standing on which contains ninety
percent of water.
Earthquake- a natural even the when
the earths crust shakes or vibrates.
Faults- is a area
of stress in the Earths surface.
Hill- a small bump in the
earths surface. It is smaller than a
mountain.
Mexico – a country that is
bordered by Texas, New Mexico,
Arizona, and California.
Mountain- a area of
land that can be formed by a
earthquake.
Tsunami- a fifty to one hundred
foot wave of water that hits coast
lines, a tsunami is not a tidal wave.