Earthquake Essay

Persuasive Essay On Earthquakes
Faults subsiding, converging, and spreading can break free at any moment causes earthquakes.
Earthquakes are unpredictable they can cause all types of damages and cause deaths to hundreds at
in just a few moments. While faults movement show scientist tail–tell signs that say "hey I'm ready
to shift" in any time the faults could slide can slip an unknown distance for an unknown range. This
happening can cause one or many earthquakes to happen even lead to volcano eruptions.
So which would be a worst an 8.1 from the Salton Sea to San Bernardino or a 7.1 offshore of Rose
Canyon to New port. While most would believe that the 8.1 from the Salton Sea would be the worst
due to its magnitude and its location. It also will leave large amounts of damage. The buildings up
toward the Salton Sea to San Bernardino are more structurally sound and can with withstand a more
abusive shaking. It has the possibility of having multiple earthquake energies released as well all
along the fault. I believe that the 7.1 will actually be the worst for us here in San Diego for a few
reasons.
A 7.1 magnitude earthquake here at rose canyon would be worst for us, due to the fact that our
building are not built to withstand the shaking of an earthquake of that magnitude. Just like an 8.1
earthquake, a 7.1 can also trigger multiple earthquakes on other faults. Our building are not the
only problem we have a lot of areas in San Diego like Mission Bay, Coronado, Point Loma, and
few other places heavily saturated sands. This is because these areas are made of sand deposits
from along the Coast. So if an earthquake were to shake that area liquefaction would happen
causing sewage issues due to the location of the sewer plants and their lines. Also, there would be
damage to water lines and gas lines. The buildings would also sink into the ground due to its soft
saturated sandy composition. A possible lowering of the ground level once settled. Let us just
remember the earthquake doesn't kill the people. It's the environment and buildings that kill the
people.
When preparing for an earthquake there are things you must do in order to protect yourself and
your family. First off you need to make sure you have food and water. If you know you
Get more content on HelpWriting.net

Earthquakes Essay
We have to know what earthquakes are in order for us to be prepared against them. Earthquakes are
tremors that move the earth. They can create a lot of damage. Earthquakes have happened around
the world. What causes earthquakes to happen? How do we protect ourselves against the powerful
earthquakes? Earthquakes can cause a lot of damage to homes and places so it is important to know
where it has happened. Also what causes them and how do we protect ourselves against earthquakes.
To begin with earthquakes can happen around the world. A 6.3earthquake destroyed historic
buildings in Italy. On January 12, 2010 a powerful 7.0...show more content...
It's important to know that earthquakes happen around the world so people are prepared for
earthquakes anytime anywhere they are. We also have to know what earthquakes are to be
prepared. Another example is what earthquakes are. Earthquakes are called tremors and can be
tremendously destructive. An earthquakes magnitude is a measured value of its size and is the
same no matter where. There is no such thing as earthquake weather. An earthquake is what
happens when two blocks of the earth suddenly slip past one another. The surface where they slip
is called the fault or fault plane. "An earthquake is caused by a sudden slip in the fault."said at an
article with earthquake facts at earthquake.usg.com. Its important to know what earthquakes are
caused by so we can understand them better. that way we can protect ourselves against
earthquakes. As well as learning how to protect yourself against earthquakes. An important thing
is to duck and cover. During an earthquake, if you are indoors, it is very important to stay calm and
take cover under a heavy object. If you are outdoors, stay as far away from buildings as possible. Get
away from shelves or other areas where objects may fall if in a crowded store or public area. Do not
run for the door. Crouch and cover your head and neck with your hands and arms. " Try to get into
an open area." Getting into an open area not

Essay on The Epicenter of an Earthquake
Earthquakes can devastate a city. They are a force of nature that can destroy any structure. The
earth is made up of moving tectonic plates. Earthquakes occur along or near tectonic plate
boundaries where two plates meet. These plates are solid rock and sit on the mantle which is a
layer of molten rock. This molten rock is constantly moving in a convection current. The earth's
core is what generates the heat. The hotter rock rises away from the core and pushes up against the
crust. Here it cools and then moves away on both sides. The now cooled rock sinks back to take the
place of the hotter rock that has risen as shown in the diagram on the right. When the rock pushes
against the crust it moves sideways. This moves the tectonic plates...show more content...
As shown in the diagram on the right, the fault runs straight through San Francisco and right along
the coast. When the two plates slide along they create huge quakes that shake the ground. There have
been many earthquakes generated from this fault line but the worst one was in 1906.
At 5:12 am on the 18th of April 1906 in San Francisco the foreshock hit the slumbering city. The
force of the earthquake was so great that the tremors were felt right throughout the San Francisco
and it reached as far inland as Nevada (500km away). Along the San Andreas fault the plate slipped
up to 21 feet. 20 seconds after the initial foreshock the main earthquake hit, lasting for about 1
minute. Although it lasted for merely a minute it wrecked mass destruction. After the quake
people walked the streets confused. Some people had no idea how much damage had been done.
Some people walked to work as per usual only to find the buildings on a lean or fallen. Not only
was there structural damage to the city but there was a significant loss of life. Many people were
trapped under building and cries of help could be heard coming from the piles of rubble. Those that
survived could not be taken to the hospitals as they had sustained major damage. The injured were
taken to the dance hall.
What no one realised that the worst was yet to come. The greatest tragedy had not yet unfolded. The
earthquake had severed gas mains and

Earthquake : Earthquakes And Earthquakes Essay
Earthquake is defined as " a series of vibrations induced in the earth 's crust by the abrupt rupture
and rebound of rocks in which elastic strain has been slowly accumulating." in dictionary.com. In
other word earthquake is crust release energy caused by shaking and plate tectonics are suddenly
move.It may cause people injuryed and economic losses.
Earth 's surface crust is called lithosphere. The earth 's crust ruptured by the force of dislocation
caused by rapid surface vibrations called seismic or damage. Tectonic activity caused by the
earthquake called tectonic earthquakes; volcanic activity caused by the earthquake called volcanic
earthquakes; seismic solid rock is called subsidence earthquake caused the collapse. Earthquakes are
a common and ordinary and a natural phenomenon, but not intuitive and complex tectonic
earthquake area, particularly with regard to seismic tectonic earthquakes occur and how it is
conceived. Scientists think caused earthquakes are by the movement of tectonic plates.
How can we measure the size of earthquake? Scientists use Richter magnitude scale to know the
earthquake release how many energy. Richter magnitude is rating to earthquakes based on the
strength and duration of their seismic waves. They are classified from one to ten and recorded on
seismographs. A quake of 3, people can feel; a quake of 5, some building has been damaged; a quake
more than 7, building will be destroyed."The largest recorded earthquake in the world was a

Earthquake And Earthquakes Essay
4. EXPLAIN THE RISK AND NATURAL HAZARDS EARTHQUAKES AND VOLCANIC
ACTIVITIES. HOW CAN WE PLAN TO CONTROL THESE RISKS?
Earthquakes and volcanoes have disastrous effects on humans and properties, it's also very harmful
for the environment overall including wildlife. Earthquakes cause a lot of damage due their shaking
nature,they can further lead to tsunamis and most common hazard related to earthquakes is
landsliding. The earthquake intensity is what measures the effects it has on land surface, and this
depends on the rock types and actual ground displacements, it's measured by the Mercalli scale and
bases on human reports of damage experienced. It's interesting that earthquakes of the same
magnitude can cause different amounts of damage...show more content...
Plate tectonic activity is related to many other things like, volcanoes and earthquakes. These natural
hazards can be found in linear belts around the globe. There are seven large plates and many small
ones, the main types of plates include the divergent plate boundary (pulls away), convergent plate
boundary (move towards each other) and transform plate boundary (slide past). Ocean–continent
boundaries create earthquakes up 700 km deep and forms seafloor trenches, it leads to andesitic
volcanoes in mountain ranges. Yellowstone is a 'hot spot' this is where heating and igneous activity
occurs within crust. Although, not all plates move at the same rate, they are relative to each other.
Continent – continent boundaries with divergent can form rift valleys, earthquakes less than 100 km
deep, and basaltic/rhyolitic volcanoes. At Convergent they have young mountain range, 300 km deep
earthquakes, and no volcanoes. At transform, they have a fault zone, less than 100 km deep
earthquakes and again no volcanoes. With ocean–ocean boundaries there is oceanic ridges with rift
valley, less than 100 km earthquakes, and basaltic pillow lavas at divergent. On convergent there are
seafloor trenches, 700 km earthquakes and andesitic volcanoes in island arc. With transform you
have ridges and valleys in oceanic crust, less than 100 km earthquakes, and some basalt. Plates are
driven by the convection in the mantle and movement of the lithosphere.
6. WHAT ARE HURRICANES? EXPLAIN THE

Haiti Earthquake Essay
The island nation of Haiti is the poorest country in the Western Hemisphere, with one in four
inhabitants of this small Caribbean nation living in extreme poverty. Plagued by political instability,
as well as the devastating aftermath of the 2010 earthquake, the country of Haiti is still struggling for
recovery.
In the wake of the worst earthquake in a 200–year history of Haiti, an estimated 1.5 million people
were left homeless. The rehabilitation process for the affected population is crippled by the
financial hardships of the country. According to a World Bank report, one in two Haitians live in
poverty, living on less than 3 dollars a day.
The extreme poverty conditions in the country have unsurprisingly affected the healthcare system as
...show more content...
According to UNICEF, maternal mortality in Haiti is 35 women out of every thousand; neonatal
healthcare is equally abysmal, with 3.1 percent of newborns dying within the first month after birth.
Most of the maternal and neonatal deaths are considered largely preventable, given adequate
healthcare resources. Accessibility to these resources is another important issue, with less than 36
percent of pregnant women giving birth in any healthcare facility.
The poor state of maternal health has spurred Maternal Life International– a non–profit organization
based in Montana– to direct their efforts for better maternal and neonatal healthcare at Haiti. Their
objective is to build family health offices in the country to assist pregnant women and newborns.
As laudable as their mission is, it is faced with the difficulties of resource scarcity in Haiti. The
lack of lumber in Haiti is a major obstacle in rebuilding the country. The deforestation of Haiti has
long been an issue of concern for the island nation, affecting the economic and ecological health of
the country. Wood is quite significant for building structures in Haiti, as cement buildings are a
danger in a region susceptible to to

Essay On Earthquakes
Earthquakes: A Natural Hazard
Introduction to Earthquakes
An earthquake is a natural hazard that causes death and destruction. Earthquakes mainly occur on
the boundary of two tectonic plates, known as fault lines, as the plates move against each other and
get stuck which creates a strain and results in rocks breaking. This releases energy into the
lithosphere (crust and upper mantle) causing shaking of the earth's surface. The energy released is
called seismic waves and these are measured on a logarithmic scale called the Richter scale.
В¬В¬В¬В¬В¬
Effects of Earthquakes (human or physical)
Ground shaking and unstable buildings are some of the short–term physical effects that are caused
by seismic waves. Fires can be created when a...show more content...
As well as that they should try to find a place that is safe; supplies such as bottled water and canned
food should be easy to reach. Communication systems can be affected so most will set up plans for
contacting friends and family.
Immediately after an earthquake looting often happens as many will be without supplies however
some people react very differently and try to help as many people as they can. Countries around
the world will send money and food; some may even send volunteers to help and administer first
aid. The rubble will be cleared to free the people trapped. Buildings being made safe is another way
they would help but depending on the country's funding it doesn't always happen immediately.
Tourism may decrease as the tourists could be scared of another earthquake or aftershock occurring.
Long–term responses would be things like building restoration because aftershocks are not unusual.
Before or after restoration begins an investigation may be required to figure out why the building
collapsed and if there were any faults in construction. The economy will be negatively affected as
rebuilding is costly and normal work is prevented from happening for quite a while. Whilst there are
investments made for rebuilding and aid is sent in the immediate aftermath, families may struggle
with reduced incomes and replacement of clothing and household items.
Case Studien
Japan
The TЕЌhoku earthquake is a prime example of an earthquake creating a tsunami. With a magnitude

Earthquakes : Volcanoes And Earthquakes
Volcanoes and Earthquakes are Sisters, Not Twins
Volcanoes and Earthquakes are two of the most intriguing natural disasters that can occur on earth.
Unlike hurricanes and tornadoes, they can awaken at almost any point in time throughout the year.
These two natural disasters are also different from others because they occur on the layers of the earth
itself. Volcanoes, while large to us, are actually small, conical patches of earth that spurt and ooze
hot molten lava from the core, and can destroy areas of land triple their size. Earthquakes, on the
other hand, are severe jolts felt on land due to the movement of earths tectonic plates. Some may
describe earthquakes as being similar to riding a bike down a flight of stairs. The impact of an
earthquakes can take down even the largest buildings and strongest structures. All natural disasters
can have damaging effects on land, some more than others, and all can be measured or predicted in
different ways. Although earthquakes and volcanoes are similar to each other, the two are still very
comparable. A few of these similarities and differences include the cause of their occurrence, and
how their occurrence impacts the environment.
Earthquakes and volcanoes are both similar in the fact the earthquakes can cause volcanoes to form
or even erupt, but the severity of their damage is caused by different factors and result in different
outcomes. The earth can be structurally compared to an egg. It has a large hot core, a thick layer of

Earthquakes Essay
Earthquakes
Throughout history, man has made many advancements. These advancements have been made to
make life easier. The one thing man can't do is to control Mother Nature. Mother Nature can cause
many things such as earthquakes.
The causes of earthquakes have been theorized in many ways. According to the book
Predicting Earthquakes by Gregory Vogt, the Greeks, "blamed the earthquakes on Poseidon, god of
the sea"(25). The Hindu believed that "the earth was a platform that rested on the back of eight great
elephants. When one of the elephants grew weary, it lowered and shook its head causing the ground
above to tremble"(Vogt 25). Margaret Poynter writes "many primitive people thought that the earth
rested upon the back of some...show more content...
He made tests, drew a world map, and recreated earthquakes only to find that rocks are being
overstressed at the faults. "A fault is the place where two plates meet and are rubbed against each
other" (Groiler Electronic Publishing,
Inc.). The book, Predicting Earthquakes, the author points out "There are generally three kinds of
faults: normal, reverse, and strike–slip. By careful observation and measurement, geologists, acting
like detectives, can tell how much a fault moved, which part went up, which part went down, and
which way the fault moved" (Vogt 26). "When one of the plates slip under the great amount of stress
at the fault, an earthquake occurs. The shaking we feel are the passing of long waves" (Putnam 443).
"The L–waves (long waves) travel at slower velocities that the primary and secondary waves. These
waves make the largest squiggles on a seismograph but their effect diminishes rapidly with distance.
The L–waves are limited to the crust" (Putnam 443).
One of the two kinds of waves are "Primary waves are a kin to sound waves, and thus produce
alternate compression and rarefaction in the medium through which they travel much like the waves
that spread out through the air in all directions from a tuning fork" (Putnam 444).
The second of the two kinds of waves are "Secondary waves, the particles in the rock through which
the wave is traveling vibrate at right angles, or transversely, to the direction of

Earthquake Prediction Essay
With reference of one or more examples of earthquakes, assess the extent to which attempts at
prediction and mitigation may have influenced the impact of the hazard.
An earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic
waves. Earthquake is a major threat to the human and natural environments, in which people died,
buildings collapsed and cities destroyed. Prediction and mitigation are usually conducted in order to
reduce the impact of an earthquake on environment. Earthquake prediction can be carried out with
seismic monitoring using tiltmeters. Hazard mapping is another way to predict the impact of an
earthquake and can be used for planning purposes. Mitigation includes the aseismic building...show
more content...
In 2003 California earthquake with a magnitude of 6.3, only three lives lost in a region where great
attention is paid to architectural design along the San Andreas Fault. Flexible structures, light roofs,
diagonal bracing and careful land zoning regulations all contribute to minimal damage to the
housing stock. However, this is only applicable and practical in economically more developed
countries where technology and fund are abundant. The 1976 Guatemalan earthquake was
described as "classquake" since it killed 22 000 people living in unsafe housing in the rural
highlands, and those in squatter settlements in the city. However, the middle and upper class were
little affected. Thus, safe building is essential as the majority of the earthquake victims were caused
by the collapse of buildings. Hence, aseismic building design may largely reduce the death tolls.
Secondly, the land–use planning. In 1990, the Japanese government passed a resolution to transfer
and relocate some of Tokyo's political and administrative functions to the less seismically active
areas, such as Honshu Island, as geologists predicted that a major earthquake would hit Tokyo in the
next 60 years. Relocating functional zones can largely reduce the potential losses caused by the
earthquake. However, the 1976 Tangshan earthquake, over 120 000 people lived in one–storey

Earthquake Reflection
Lecture Reflection 4
All forms of natural disaster bring devastating effects and strike with vicious force, demolishing
everything around them. Additionally, natural disaster is bound to happen, so why not prepare for
the worst? In 2004, the coastal areas of south and southeast Asia were hit with a disastrous tsunami.
Areas of India, Indonesia, Sri Lanka, and Thailand did not have the ability to prepare when the
tsunami swept away thousands of civilians and wiped out a portion of their infrastructure. In my
my opinion, if natural disaster strikes an area, I would recommend moving out of that area right
away and start considering a new place to live. Citizens who stay in the same area after natural
disaster, have a high probability of witnessing another. However, many people that have been hit by
natural disaster commonly go back to live at the destroyed site because it's all that they may have
left. This is sad but realistic.
Furthermore, when natural disasters hit vulnerable urban areas, effects are catastrophic. Some
significant factors that play a role in the safety of residents in urban areas; rapid population growth
with inadequate planning, ecological imbalance, population density, compacted infrastructure,
dependency on infrastructure, and inappropriate construction. Although, these places may be miles
away from each other, there were many similarities found in each of these cases. Firstly, all of the
places hit by the tsunami witnessed a loss of coastal areas

Earthquake Literature Review
Review of Literature
Introduction to earthquakes Earthquakes are a sudden and violent shaking of the ground, sometimes
causing great destruction, as a result of movements within the Earth's crust or volcanic action.
Earthquakes is one of the dangerous and life threatening natural disaster which can come anytime
and anywhere on the earth. Earthquakes can cause tsunami, landslides, mudslides, bigger
earthquakes, and aftershocks. These can all cause significant damage property and buildings, death
and injury to people and animals, floods, major disasters and emergency situations. Earthquakes are
usually caused when rock underground suddenly breaks along a fault. This sudden release of energy
causes the seismic waves that make the...show more content...
IV.Earthquake Locations
California isn't the only state with a serious earthquake hazard. There are several lesser–known fault
zones lurking in other parts of the country that are just as dangerous, if not more dangerous, than
the famed San Andreas Fault. Some of these faults are capable of producing quakes bigger than
the 1906 San Francisco quake, but because the time between major jolts is longer than in
California, many people live near these faults don't even know they are there. The most and largest
active earthquake zone is the Pacific Rim of Fire, also known as Ring of Fire. This is a roughly
horse–shaped ring around the entire Pacific basin which is characterised by frequent seismic activity
– especially around regions such as California and Japan. V. Seismologist
Seismologists is a person who studies earthquakes. Some geologists specialize as geophysicists, who
study the physical properties and process of the Earth. This field includes seismology, or the of
earthquakes. Seismologists study earthquakes so people can be aware of them and prepare.
Seismologists watch the seismograph and record the information.
VI.

Earthquakes Essay examples
What is an Earthquake?
An Earthquake is the shaking of the earth's surface caused by rapid movement of the earth's rocky
outer layer. The sudden shaking of the ground that occurs when masses of rock change position
below the Earth's surface is called an earthquake. The shifting masses send out shock waves that may
be powerful enough to alter the surface of the Earth, thrusting up cliffs and opening great cracks in
the ground.
Earthquakes, called temblors by scientists, occur almost continuously. Fortunately, most of them can
be detected only by sensitive instruments called seismographs. Others are felt as small tremors. Some
of the rest, however, cause major catastrophes. They...show more content...
Although it is certain that violent Earth tremors in themselves are destructive, there are often other
kinds of Earth movements that are triggered by earthquake shock waves. Thus, the violent shaking
that accompanies many earthquakes often causes rockslides, snow avalanches, and landslides. In
some areas these events are frequently more devastating than the Earth tremor itself.
Floods and fires are also caused by earthquakes. Floods arise from tsunamis along coast lines, from
large–scale seiches in enclosed bodies of water such as lakes and canals, and from the failure of
dams. Fire produced the greatest property loss following the 1906 San Francisco earthquake, when
521 blocks in the city center burned uncontrollably for three days. Fire also followed the 1923 Tokyo
earthquake, causing much damage and hardship for the citizens.
Causes
Most of the worst earthquakes are associated with changes in the shape of the Earth's outermost
shell, particularly the crust. These so called tectonic earthquakes are generated by the rapid release
of strain energy that is stored within the rocks of the crust, which on continents is about 22 miles
thick. A small proportion of earthquakes are associated with human activity. Dynamite or atomic
explosions, for example, can sometimes cause mild quakes. The injection of liquid wastes deep into
the Earth and the pressures

Essay On Earthquake
The data from nine earthquakes happened in winter and summer time, with magnitudes ranging
from M 3.0 to M5.7, was collected at a sampling rate 200 Hz and preprocessed for the further
analysis [4]. Then, dynamic properties of the structure were obtained using modal property
identification toolbox (MPIT 2.0) developed at the University of Auckland [13]. The modes were
determined from the following system identification algorithms: –Frequency domain methods: the
peak picking (PP), the frequency domain decomposition (FDD), the enhanced frequency domain
decomposition (EFDD) –Time domain method: stochastic subspace identification (SSI) method [14]
identifying the stable poles by generating singular values around them from the singular value...show
more content...
Then, the most plausible modes was chosen by comparison of MAC values of each date for each
SI algorithm. Since fundamental mode of the bridges always excited by the translational ground
motions during earthquakes, transverse components of mode shapes only were described in this
research to estimate the input of different bridge components on the bridge dynamic response.
The frequency values obtained by each method, except of SSI for summer dataset, at each season
and their mean and coefficient of correlation are shown in Table 3.1 and Table 3.2. From this
figure, the values of fundamental transverse frequency identified by each method are highly
correlated for all methods, the mean coefficient of variation was no more than 0.02. In addition,
no relationship between the transverse frequency and the depth of frozen soil at specific dates
was observed. A high correlation between mode shapes, with MAC value 0.95 or higher, was
observed for two frequency domain methods only, FDD and EFDD. Therefore, the average values
of natural transverse frequency calculated from the values identified by each method, 7.69 Hz and
2.85 Hz, and mode shapes obtained by FDD technique (Figure 3.1) were chosen as a baseline
experimental values for the further calibration of the numerical models developed for winter and
summer respectively. The bridge transverse response is mainly symmetrical; the possible

Narrative Essay About A Earthquake
Have you ever woken up to see half your house gone? Or everything in your house destroyed? I
have. I'm Jose age 15 and I live in Mexico. That day wasn't like a regular day. We heard there was
going to be a huge earthquake and that everyone had to leave. Although a lot of people were
leaving, my family didn't have enough money to leave. That day I woke to everything shaking, I
was confused. I jumped out of bed and ran to get my sister 7 years old and my mom. My dad had
died when I was two. My mom said he had died in a car crash. But, I can tell that she was lying. I
never questioned her. So I ran to my sister's room avoiding falling things. I ran into her room and
picked her up and didn't bother to wake her. I ran with her on my shoulders to my mom's room. I
woke up my mom because I couldn't carry. "Mom, wake up," I said shaking her. She woke up
confused. So I pulled her along. We ran outside into chaos. People running around all crazy. After
a few minutes, the earthquake stopped. I asked my mom if she was ok. "Yes, Jose. Thank you for
getting your sister and acting so quickly." My mom replied. I look back at the destroyed house.
"Mama, I'm going to check on the other people." and I went to the old lady Coco's house down
the street to check on her. "Coco! Coco!" I yelled. In a raspy voice, I hear the old woman reply
"Here, here." I go through the empty doorway with the door on the ground. In the house, I saw her
pictures on the ground and the walls crumbled

Essay on EarthQuakes
Earthquakes
Earthquakes, one of the most destructive natural phenomena, consist of rapid vibrations of rock near
the earth's surface. Because of their unpredictable occurrence and enormous capacity of destruction,
they have brought fear to mankind since ancient times. A single shock usually lasts no more than a
few seconds, but a series of smaller quakes may last for as long as five minutes. The quake felt on the
surface is always the result, not the cause of some underground geologic process, and in many cases
the damage done is immense. The Greek word for shaking, and (when applied to the earth)
earthquake, is seismos. Therefore, the science of earthquakes is called seismology (World Book
Dictionary...show more content...
Fires, landslides, tsunami, falling rock, damaged buildings, and damaged gas lines are just a few
results of secondary shocks. These conditions reek havoc on earthquake corrupted areas, and in
1934, Bihar–Nepal witnessed this first hand. During a landslide, "...an observer reported that
his car sank to the axles". In 1946 off the coast of the Aleutians, the base of a lighthouse
ended up 45 feet below sea level after a tsunami wave over 100 feet crashed on shore (Watkins,
Bottino, Morisawa 51, 53–54).
An earthquake is a natural occurrence; a phenomena just like rain. They have occurred for billions
of years and descriptions as old as recorded history shows their effects on people's lives. Long
before scientific explanations mankind created folklore to explain them. We have come a long way
for spinning yarns around the campfire, but there is still no way to prevent earthquakes. All in all it
doesn't hurt to learn as much as one can, but just like taxes and pokemon earthquakes are something
we have to live with.
EARTHQUAKE REFERENCE FILES Earthquake, shaking of the earth's surface caused by rapid
movement of the earth's rocky outer layer. Earthquakes occur when energy stored within the earth,
usually in the form of strain in rocks, suddenly releases. This energy is transmitted to the surface of
the

Earthquakes Questions And Answers
EARTHQUAKES
Objective: To define and discuss earthquakes and its effects.
Earthquakes are a major catastrophe and can be a big threat to human lives. To understand
earthquakes you must have a clear definition, know its mechanisms, be able to recognize the size and
dynamics and understand its effects:
I. Definition of Earthquake
a. Earthquake
b. Tsunamis
c. Landslides
d. Volcanoes
II. Mechanism
a. Faults
b. Seismic Waves
c. Aftershocks...show more content...
The slipping fault then creates seismic waves in the surrounding rock. Seismic waves create the
sound waves in the air. It also carries energy away from the fault, first to nearby rock. In hours to
follow or even days many small earthquakes occur. These are referred to as aftershocks. Aftershocks
are a result of rocks near the fault adjusting to accommodate the new stress levels.
In order to understand the size of an earthquake certain items must be taken into consideration.
Strength, classification of seismic waves, logarithm and intensity are some of the main areas to
focus on. The strength depends upon the area of the fault length times width on which the slip
occurs, the amount of the slip and the inherent stiffness of the nearby rock. An earthquake occurring
a 100–km (62–mi) fault is about one billion times stronger than a quake on a 100–m (328–ft) fault.
Seismic waves are classified in two areas P–waves, which are your compressional waves, and
S–waves, which are shear waves. These waves are used in detection and location of earthquakes.
Several thousand seismometers are in continuous operation worldwide. These stations record ground
motions, detect waves even at great distances from the fault as well as measure arrival time of P and
S waves. Logarithm of moment

Expository Essay On Earthquake
Write an informative process analysis about another dramatic act of nature; for example, an
earthquake, tornado, tsunami, or hurricane.
Maninderdeep Singh Grant MacEwan university
23 – OCT – 2017
Author Note
This paper was prepared for English 111, taught by Professor Valentyna Kennedy
Abstract
There are a lot of disasters, but earthquake is the worst out of all. In this Research we can find out
how an earthquake happens, the main reasons of why it happens and measures how a person can
get out of such a situation. Earthquakes are the shock waves which happen for approximately half a
minute. Taking references from books and journals it can be seen what a person should do during an
earthquake and how this natural calamity can be measured and steps that government takes to find
out where will this disaster show its power the next time.
Expository essay on earthquake
Earthquake is a Trembling or shaking alteration of earth's surface. It is a sudden brutal shaking of the
earth's surface occurring naturally and cause great massacre with its strong movements in the earth's
crust or action of volcano. It is naturally occurring disturbance which can be characterize as an
abnormal violent and involuntary contraction or series of contractions of the ground.it originate
anytime inside the earth's crust and push a bulk of rock to slip rapidly. A huge amount of energy
gets released and travel through rocks and waves, which cause tremors and trembling of

Earthquake Preparedness Essay
| Earthquake Preparedness| Public Administration| | Lorena Hedges| 9/18/2012|
I will be discussing the needs of a budget and what supplies will be in the budget plan. Then you
will read some about the shelter provided, population of the community, and damages caused by
earthquakes. There will be information about the policy and procedures to follow for an earthquake
and what challenges we have to face. The conclusion will be completed in the next phase.|
Earthquake Preparedness
Budget
There are three major consequences of an earthquake: injury to employees, customers and visitors;
damage to property, the infrastructure of the area, and lifelines; and disruption of business
operations (Crook, 1999). This is...show more content...
Damages Caused by Earthquakes
Past Records of Earthquake Damages There are many different types of damages that can be
caused by earthquakes. People lose their homes, businesses are destroyed, and much more.
Statistics shows the economic damage caused by earthquakes between 1900's and present here in
the United States are 41.04 billions of dollars (Economic Damage Caused By Earthquakes By
County Up To 2012, 2012). Between the years 2006 to 2012 there was 7,340 earthquakes with a
magnitude of 4.0 to 4.9 (Earthquakes Worldwide By Richter Scale Gradation Up To 2012, 2012).
Many lives are taken from the effects of an earthquake.
Other Department Involvement Other organizations pull together and help with the disasters across
the world. Here is a list of a few organizations and the services they offer: American Red Cross|
Fixed/mobile feeding stations, shelter, cleaning supplies, comfort kits, first aid, blood, food,
clothing, emergency transportation and much more.| Friends Disaster Service| Provides clean–up
and rebuilding assistance to the elderly, disabled, low income, or uninsured survivors of disasters.|
Salvation Army| Mass and mobile feeding, temporary shelter, medical assistance, and distribution of
donated goods such as food, clothes, and household items.| Volunteers of America| Making vehicles
available for transporting victims and supplies to designate

Reflection Paper On Earthquake
On January 12/2010, everyone wakes up doing their daily rooting as every other day but no one
would of thought of what mother nature got on her fits for them exactly. January 12/2010 at 4:53
was the time and date when the unforgettable earthquake happened. It was a total chaos for the little
island of Haiti when it was hit with a magnitude of 7.0 earthquake. Around that time, I was 12 years
old living in Port–au–Prince in Haiti which is the capital. On that day people were like children that
were learning how to walk and didn't have the balance to support their body weight, at that time;
nobody could see clearly even if they had a 20/20 vision because there was so much dust around
from the houses that were already collapsed. people were smacking into each other as if they were
children playing in front of a mirror with their reflection, at that moment, everyone though there
would be no more Haiti.
As some of you may heard that Haiti is a tropical island, but on January 12, 2010, I didn't smell
any fresh air or fresh water running, instead I smelled fresh blood running because many people
had died because of bricks falling on them and some even lost a leg or an arm, and there were
some that unfortunate and lose both hands and legs. On that day, anybody could have died
because nature didn't know who's an adult or child rich or poor. On that day, everyone including
little kids was like a song composer, and it was like everyone bring was united as one and how all of
them were

Earthquake Essay

Recommended

Recommended

More Related Content

More from Paper Writing Service Reviews

More from Paper Writing Service Reviews (20)

Recently uploaded

Recently uploaded (20)

Earthquake Essay