Essay On Earthquakes And Earthquakes

Essay On Earthquakes And Earthquakes
Whereareearthquakesandvolcanoesfound? Volcanoesandearthquakeshavebeenknowntomanforthousandsofyears,
butuntilfairlyrecentlytheirdistributionontheglobewasthoughtofastotally haphazardwitheacheventanisolatedphenomenon.Yet,ifthepositioning
oftheworld'svolcanoesisconsidered,itcanbeseenthatmostvolcanoes aresituatedwithinseveralhundredkilometresofthesea,andmoreover,
thattheregionsofvolcanicactivityareconcentratedintoseveralgirdles
orbandscirclingtheEarth.Mostnotableamongstthesearetheso–called"RingofFire"surroundingthePacificOcean (seefigure1),andthemoretenuousand
disjointedlinerunningdownthecentreoftheAtlanticOcean.Throughoutgeological history,igneousactivityhasbeenrestrictedinthesameway,asstudies
ofancientigneousrocksshow.Similarly,earthquakesdonotoccurrandomly overthewholesurfaceoftheEarth.Theirepicentresalsofallintowelldefined bands
girdlingtheplanet,andinfact,seismicandvolcanicactivityarewell–correlated – sothatbandsofconcentrationforeachcoincide(Figure 1).
Figure1.Mapoftheworldshowingthelocationoftectonicplateboundaries,volcanoes,hotspots,
andearthquakezones.Notehowthemajorityofseismicandvolcaniceventsareconcentrated onplateboundaries. Tectonicplatesandtheir boundaries
Theseconcentrationsofgeologicalactivityactuallydefinetheboundariesof huge,rigidfragmentsofthe
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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

Research Paper On Earthquake
Natural Disasters Research Project Earthquake: San Francisco, California
Earthquake An earthquake is caused by a sudden slip on a fault. We know that tectonic plates move slowly towards, away from or past each other.
Continents are parts of these plates which means they move too after time. An earthquake occurs when the rocks break and move as a result stresses
caused by plate tectonics. but sometimes they get stuck at their edges due to friction. When the edges overcome Earthquakes are the most deadly of
all natural disasters. When an earthquake strikes, it can make a difference between life and death. If you survive an earthquake it's something you'll
never forget. Most of the time it's not the quake that kills people but the building and the things inside it that fall down. It can destroy pipelines, gas
lines that can cause fire and zero electricity. Usually there are aftershocks for weeks or months. For example, the earthquake that happened in San
Francisco, California on October 17,1989. It was a really destructive earthquake that killed people and billions of dollars in damages.
Description of The Event The earthquake that happened in San Francisco, California in 1989 was an earthquake that was triggered by a slip along the
San Andreas fault. "The focus was in the Forest of Nisene Marks State Park, near Loma Prieta peak in the Santa Cruz mountains. Northeast of Santa
Cruz and approximately 60 miles south of San Francisco. Seismicity

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

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 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

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

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 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

Informative Speech On Earthquakes
Outline worksheet
Topic: To prepare the earthquakes
Organization pattern: Topical
Specific purpose: The purpose of this speech is to persuade my audience to understand why it is so important to learn the knowledge of preparing the
earthquakes.
Primary audience outcome: I want my audience to pay more attention to prepare the earthquake knowledge and rescue methods through I presenting
facts of the earthquakes. Thesis statement: In the speech, I will continue to improve the earthquake's knowledge of my audience by analyzing cases;
introduce the significant idea of earthquake prediction; deeply develop rescue methods.
Introduction
Attention getter: I will start to ask a question " how many people read natural disaster news in the newspaper after I give the informative speech in a
couple weeks ago? "
Purpose: Everyone will think that we are living in a peaceful state now and ignore to pay attention to the natural disaster information. On the contrary,
this thought in your mind will reduce your sense of crisis. Believe or not, increase a sense of crisis of the earthquake and learn more earthquake
information can decrease the damage when the earthquakes occur in our life
.
State thesis&main points: So, in the speech, I am going to introduce how the earthquakes cause the damage to human; tell about the earthquakes
prediction and why we need to have a rescue plan.
Body
в… Main point: In the last informative speech, I have introduced that the earthquakes are what happens when

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, anearthquake 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

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

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

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

Essay On Mexico City Earthquake
For my current events paper, I chose to write about the earthquake that hit Mexico City, I selected an article from Houston public media news titled
"Mexico City Earthquake Update: All children accounted for" Mexico City suffered from two power earthquakes just 12 days apart. On September 7th,
the first earthquake hit the capital, sending distress throughout the city , and breaking record as the most powerful earthquake to hit Mexico in a
century. Then again on September the 19th Mexico suffered another earthquake which took place approximately 100 miles from Mexico City.
Officials were finally able to report that there were no longer any missing children at a Mexico City school that had been severely damaged "We've
done an accounting with school officials, and we are certain that all the children either died, unfortunately, are in the hospital or are safe at their
homes," (pt.3, Sarmiento 2017) "he said 19 children and six adults were killed in the school...show more content...
"Scientist say strong earthquakes can sometimes alter stresses nearby, leading to subsequent quakes." (p.4, Stevens 2017) Natural disasters are based
on many things, but I think the single most important is physical geography, or location. If you lived in the drier parts of california, then you would
be more prone to wildfires. If you lived in alaska, then you would be more prone to avalanches. Unfortunately for those who lived in Mexico, where
the North American and pacific plate meet and create transform plate boundary making it a prime location for earthquakes. Mexico is located on
something scientists call a subduction zone plate boundary. "Subduction zones are the part of the earth where one slab of the crust is slowly sliding
under another"(pt.6, Stevens 2017) in simpler terms when two plate boundaries meet at a subduction zone, earthquakes are like a ticking time

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

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

On Earthquakes Essay
On Earthquakes
An earthquake is a shaking or trembling of the crust of the earth caused by underground volcanic action or by the breaking and shifting of rock
beneath the surface. The volcanic action and shifting rocks create strain which continues to build to a sudden release of pressure resulting in a shock
wave. The vibrations produced in the crust can vary from barely noticeable to enormously destructive. Shock waves can be classified into two broad
categories. Waves that send particles oscillating back and forth in the same direction as the waves are traveling are called primary. Primary waves,
sometimes called compressional waves, travel through the earth beneath the crust. Secondary...show more content...
The modern seismograph was invented early this century by a Russian seismologist, Prince Boris Golitzyn. This device made possible the modern era of
earthquake research.
Although earthquakes have occurred and affected mankind for as long as humans have been around, historical records are either lacking or
considered unreliable before the middle of the 18th century. However, some records do exist and date major earthquake events back to 425 BC when
one occurred off the coast of Greece resulting in an island named Euboea. Another occurred in Asia Minor about AD 17 and another leveled much of
the Roman city of Pompeii in AD 63. During the Middle Ages, severe earthquakes struck England, in 1318; Naples, Italy, in 1456; and Lisbon,
Portugal, in 1531.
Casualties from major earthquakes have resulted in the greatest disasters in history. The worst occurred in 1556 in the Shannxi (Shensi) Province in
China and killed an estimated 800,000 people. During the 18th century, the Japanese city of Edo (site of modern day Tokyo) was struck and killed
200,000. Earthquakes in Sicily in 1693 and Lisbon in 1755 each killed about 60,000 people. In 1797, approximately 40,000 died when Quito, Ecuador
was struck.
Historically, the most powerful earthquakes to strike North America occurred in 1811 and 1812 in southeastern Missouri. However, the most famous
earthquake to strike in North America

Essay On Earthquakes And Earthquakes

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Essay On Earthquakes And Earthquakes