The Three Main Causes Of Tectonic Earthquakes
explanatory Essay
870 words
Thousands of Earthquakes happen every day around the world, but only a few of these are actually strong enough to be felt. And fewer still are strong enough to cause any damage to structures, even so Earthquakes have the ability to destroy entire Cities or even entire countries (See 2011 Tōhoku Earthquake and Tsunami). But what causes Earthquakes to occur, what happens to a Cities Infrastructure (Utilities, Roads, and Buildings) when one does strike, and what can city leaders and citizens do to prepare before one hits? There are three main causes to Tectonic Earthquakes. Tectonic because they are caused by the Tectonic Plates that the crust of the Earth’s surfaces rest on. Where these Tectonic Plates meet are called boundaries. The three …show more content…
One way of preparing the citizens for an Earthquake is public education. The main goal of public education as stated by (Nathe) “Is to change people’s behavior. Hazards education attempts to increase protective actions by people, groups, and institutions by presenting information about a hazard and the risk it poses in order to create uncertainty in people’s minds. The goal is to make people wonder about the environment and question their safety in it”. By explaining the hazards and what they can do before, during, and after the event the public will be able to recover faster from a devastating earthquake. Another way that cities can prepare structures for earthquakes would to add reinforcements to them. By shoring up wood joints and adding motion dampeners to structures these additions will greatly increases the ability of structures to resist movement and sustain less damage during a large earthquake. In addition, utilities can be stretched by using flexible water and natural gas lines. As well as using automatic shut off valves to reduce the risk of maker leaks occurring if a breakage occurs. Lastly if cities have a well-planned out emergency management plans to deal with the response and recovery efforts after a devastating earthquake. Then the faster the city and its citizens will be able to start the rebuilding process and return to a sense of
In this essay, the author
- Explains that earthquakes happen every day around the world, but only a few are strong enough to be felt. even so, they can destroy entire cities or even entire countries.
- Explains the three main causes of tectonic earthquakes: divergent, convergent and transform plane.
- Explains that earthquakes can cause havoc with a cities infrastructure, such as roads, buildings, and utilities. earthquakes are not good for bridges and roadways.
- Explains that earthquakes happen every day around the world, but only a few are strong enough to be felt. even so, they can destroy entire cities or even entire countries.
- Explains the three main causes of tectonic earthquakes: divergent, convergent and transform plane.
- Explains that earthquakes can cause havoc with a cities infrastructure, such as roads, buildings, and utilities. earthquakes are not good for bridges and roadways.
- Opines that cities can recover and prepare for such catastrophic events by educating citizens about hazards and how to prevent them.
- Explains that earthquakes can affect everyone on a global scale, but for those living in earthquake-prone areas, they can become major mart of their lives. cities will be able to better prepare for such an event.
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- Significance Of The San Francisco Earthquake Of 1906explanatory essayOne of the worst natural disasters in United States history to this date occurred almost 109 years ago. On April 18, 1906 at 5:15am in San Francisco, California, the earthquake of San Francisco occurred hitting between 7.9 and 8.3M on the Richter scale. The San Andreas Fault, which is about 600 miles long, running from the Gulf of California to Cape Mendocino and is an active strike-slip fault, cut through the continental lithosphere to cause the San Francisco Earthquake of 1906. An earthquake is a trembling or shaking of the ground produced by movements along a fault (Strahler, 2012). After the tension is released at a critical point, the fault or tectonic plate slips and relieves the strain and creates the seismic waves, which radiates out in all directions causing the shaking of the surface.
In this essay, the author
- Describes the san francisco earthquake of 1906, which occurred on april 18, 1906. the san andreas fault, an active strike-slip fault, cut through the continental lithosphere to cause it.
- Explains that the 1989 loma prieta earthquake scaled only 25 miles along the san andreas fault. earthquakes on transforming boundaries produce moderate to strong earthquakes.
- Explains the magnitude of the 1906 earthquake was between 7.9 and 8.3m on the richter scale. the ground was moving at nearly 3 miles per hour and lasted between 45 and 60 seconds.
- Describes the san francisco earthquake of 1906, which occurred on april 18, 1906. the san andreas fault, an active strike-slip fault, cut through the continental lithosphere to cause it.
- Explains that the 1989 loma prieta earthquake scaled only 25 miles along the san andreas fault. earthquakes on transforming boundaries produce moderate to strong earthquakes.
- Explains the magnitude of the 1906 earthquake was between 7.9 and 8.3m on the richter scale. the ground was moving at nearly 3 miles per hour and lasted between 45 and 60 seconds.
- Explains that the 1906 earthquake was one of the most influential earthquakes scientifically. scientists flourished after the earthquake, including lawson, reid, and gilbert.
- Describes the reid elastic rebound theory, which is the gradual accumulation and release of stress and strain that most earthquakes are a result of.
- Explains that the san andreas fault is a transforming boundary and the rocks on the two sides of the faults have been held together without sudden slippage.
- Opines that with the information that we have now on seismic activity, they could've properly prepared. they may not have saved the 28,000 buildings but could’ve saved some of the 3,000 people that died indirectly or directly by the 1906 earthquake.
1003 wordsRead More - Earthquakes Essayexplanatory essaySeismic waves are energy waves that are caused by the sudden breaking of rock in the earth’s crust, or because of an explosion caused by man; these waves travel through the earth and can be recorded by seismographs. There are many different types of seismic waves, but the two main types are surface waves, which can only move on the earth’s surface like a sort of ocean wave, and body waves, that travel through the earth’s innermost layers. Earthquakes make up both surface and body waves. Both surface and body waves can be broken down to two main
In this essay, the author
- Explains that most earthquakes aren't strong enough to be felt by humans and animals, and can only be recorded by seismometers strategically placed in all corners of the world.
- Explains that earthquakes have been happening since the beginning of time, and the oldest recorded earthquake was recorded in china on 1177 b.c.
- Explains that in norse mythology, there are two stories that explain the trembling of the earth. in the first, it was believed that fenrir was to bring about ragnarok and kill the all-father odin.
- Explains that most earthquakes aren't strong enough to be felt by humans and animals, and can only be recorded by seismometers strategically placed in all corners of the world.
- Explains that earthquakes have been happening since the beginning of time, and the oldest recorded earthquake was recorded in china on 1177 b.c.
- Explains that in norse mythology, there are two stories that explain the trembling of the earth. in the first, it was believed that fenrir was to bring about ragnarok and kill the all-father odin.
- Explains the story of namazu, a giant catfish, in japanese mythology. it is supposedly guarded by the god of thunder and swords.
- Explains that earthquakes are the result of poseidon, god of the seas, oceans and earthquake. kisin, a malevolent underworld deity, would often uproot and destroy trees planted by chac.
- Explains that earthquakes are the result of sudden break along a fault in the earth's crust, which results in an overwhelming amount of energy that in turn causes the seismic waves to make the ground shake.
- Explains seismic waves are energy waves that are caused by the sudden breaking of rock in the earth's crust, or because of an explosion. earthquakes make up both surface and body waves.
- Explains that surface waves have a low frequency than body waves and are at fault for the destruction earthquakes cause.
- Explains that body waves travel in the earth's interior and arrive before surface waves, which are either p waves or s waves. primary waves are the fastest seismic wave and can move through solids and not liquids.
1225 wordsRead More - Architectural Earthquake-Resistant Design Essayexplanatory essayWe will begin by discussing the land that is underneath the structures and its reaction to the earthquake. According to National Geographic there are three types of ground, Fault-zones, Landfills, and Bedrock. Even though each of those ground shakes during an earthquake, the building itself reacts differently to the terrains.
In this essay, the author
- Explains that fault-zones are the areas where earthquakes occur.
- Explains that steel is the most earthquake-resistant material out of the three. it is more elastic than wood, and metallurgists say it bends as much as possible before it breaks.
- Explains that brick is the least earthquake-resistant material out of the three because it has no elastic properties like wood and steel. brick structures are designed so that all the walls interlock.
- Explains that fault-zones are the areas where earthquakes occur.
- Explains that steel is the most earthquake-resistant material out of the three. it is more elastic than wood, and metallurgists say it bends as much as possible before it breaks.
- Explains that brick is the least earthquake-resistant material out of the three because it has no elastic properties like wood and steel. brick structures are designed so that all the walls interlock.
- Analyzes how different types of terrain and building materials are seen throughout japan's architecture, from landfills and shantytown in kamagasaki in osaka to bright lights and steel skyscrapers in tokyo.
- Describes the south carolina earthquake education preparedness program, college of charleston.
- Explains how brick masonry houses behave during earthquakes.
- Explains that the architectural earthquake-resistant design was best fitted for their gaming/animation degree for several reasons.
- Explains that landfills absorb vibration, which causes the building to be sucked into the ground, and bedrock absorbs vibration. wood structures respond to earthquakes differently than bricks because of its elastic properties.
- Describes national geographic's "forces of nature," environment facts, environment science, global warming, natural disasters and ecosystems.
1434 wordsRead More - Earthquake Essayexplanatory essayEarthquakes happen when two tectonic plates touch each other. When those plates experience tension and friction, they lock up, preventing any kind of movement. As soon as the pressure is suddenly released, an earthquake can occur. The phenomenon of rock breaking along a fault can cause the ground to shake because of the release of energy being given off in the form of seismic waves (“Earthquakes”).
In this essay, the author
- Explains earthquakes are caused by a buildup of energy in volcanic or tectonic form.
- Explains that earthquakes occur when two tectonic plates touch each other, preventing any movement. rock breaking along a fault can cause the ground to shake because of the release of energy in the form of seismic waves.
- Explains that earthquakes can occur due to the stress and movement caused by the tectonic plates rubbing back and forth.
- Explains earthquakes are caused by a buildup of energy in volcanic or tectonic form.
- Explains that earthquakes occur when two tectonic plates touch each other, preventing any movement. rock breaking along a fault can cause the ground to shake because of the release of energy in the form of seismic waves.
- Explains that earthquakes can occur due to the stress and movement caused by the tectonic plates rubbing back and forth.
- Explains that intraplate earthquakes occur because of a fault that is pushed, as result of rocks that are compressed.
- Explains that a volcanic earthquake occurs when magma travels to the surface, breaking rocks, and causing an earthquake.
- Explains that earthquakes can cause landslides. earthquake magnitude has relations with the location of the earthquake, the distance, and the volume.
- Explains that foreshocks occur when pieces of rock crack under stress, before what is called the main shock.
- Explains that an aftershock is a tinier earthquake that might happen in the same location.
- Explains how charles f. richter invented the richter scale, using an equation tied to the amplitude of the largest wave ever recorded on a seismometer. later, other inventions were developed similar to that specific scale.
- Compares the moment magnitude scale with the richter scale, which allows for more accurate assessments of earthquakes of larger magnitudes.
- Explains how earthquakes can be broken down into different classes, and their magnitudes, from how are earthquake magnitudes measured?
- Explains that the mercalli scale is important to keep in mind when measuring the magnitude of an earthquake.
- Argues that the idea that someone can predict an earthquake is untrue. some people argue that animals act weird because of foreshocks.
- Explains that the majority of earthquakes occur between the boundaries of plates in the solomon islands, indonesia, and japan. earthquakes can also strike when one plate is forced past another.
- Describes the destruction of haiti's lycee marie-jeanne school for girls and delmas 32, a police precinct. before the earthquake, there was concern on the well-being of the haitian children.
- Narrates how an earthquake in niigata, japan injured around nine hundred people and caused nine deaths. the quake also set off a nuclear power plant that trickled radioactive substance into the sea of japan.
- Explains that sendai, japan was hit by an earthquake on march 11th, 2011 — normally, the japanese are accustomed to earthquakes, but this time, people realized the earthquake was different.
- Explains that an earthquake occurred on mexico’s pacific coast in guerrero, mexico on may 8th, 2014. the damage of the earthquake was extensive.
- Explains that earthquakes are important to study, since they affect so many people per year.
1870 wordsRead More - Major Earthquakes are Inevitable in Indiana’s Futureopinion essayEarthquakes are a natural part of the Earth’s evolution. Scientific evidence leads many geologists to believe that all of the land on Earth was at one point in time connected. Because of plate tectonic movements or earthquakes, continental drift occurred separating the one massive piece of land in to the seven major continents today. Further evidence supports this theory, starting with the Mid-Atlantic ridge, a large mass of plate tectonics, which are increasing the size of the Atlantic Ocean while shrinking the Pacific. Some scientists believe that the major plate moveme...
In this essay, the author
- Opines that major earthquakes are inevitable in indiana's future. the quake, whose epicenter was located north of evansville, was a wake-up call reminding those who haven't paid attention to past warnings.
- Explains that earthquakes are volcanic or tectonic in origin, and that more than 8,000 earthquakes occur each day without causing damage.
- Explains that earthquakes are a natural part of the earth's evolution, and geologists believe that all land on earth was at one point in time connected.
- Opines that major earthquakes are inevitable in indiana's future. the quake, whose epicenter was located north of evansville, was a wake-up call reminding those who haven't paid attention to past warnings.
- Explains that earthquakes are volcanic or tectonic in origin, and that more than 8,000 earthquakes occur each day without causing damage.
- Explains that earthquakes are a natural part of the earth's evolution, and geologists believe that all land on earth was at one point in time connected.
- Explains the richter scale, which measures the "back and forth force" of an earthquake using an instrument called a seismograph.
- Explains that the largest earthquake ever recorded in the world occurred in chile and registered a 9.5 in 1960.
- Explains that large earthquakes reaching a richter scale magnitude of 6.0 in indiana are predicted to occur in approximately 2,000-year cycles, but geologists don't know when the last one occurred.
- Explains that the wabash river valley fault line runs between vincennes and terre haute. most predicted epicenters are located in southwest indiana and southern illinois.
- Explains that samuelson believes that there is a greater earthquake possibility in indiana. the new madrid fault line is the largest fault in the midwest.
- Opines that an earthquake along the new madrid fault line could be more devastating to indiana than a quake from the wabash valley
- Opines that an earthquake would destroy and damage property for miles from the epicenter, killing thousands of people who are not prepared to deal with its effects.
- Explains that there is not much concern in the muncie area about devastating earthquakes. samuelson is certain that if the seismic strength of a quake was great enough, it could do damage to buildings.
- Explains that delaware county emergency management agency has an all hazards, all risks plan for tornadoes, floods and earthquakes.
- Opines that gaznell's only specific plan is what-to-do in the event of a chemical or nuclear attack, which is written in response to the terrorist threats facing the country.
- Suggests the american red cross prepare for an earthquake by preparing a home earthquake plan, practicing drills, and choosing an out-of-town contact. prepare disaster supplies for home and car.
- Describes the steps to follow when shaking begins, and explains how to prepare for aftershocks, such as checking for injuries and extinguishing small fires.
- Argues that indiana's fault lines are further underground than those in california and alaska, causing more minor quakes in the midwest.
1293 wordsRead More - Causes Of The 1906 San Francisco Earthquakeexplanatory essayMr. Adams describes the San Francisco earthquake as his most profound human suffering experience because the horror of shaking floors, parts of his mom’s house collapse to the floor, and got a broken nose from stumbling into a brick wall (Ansel Adams & The 1906 Earthquake 2008). Earthquakes are part of natural disasters of the earth and normally caused by shaking the ground and rapid movement of one block of rock slipping past another along fractures in the earth crust called faults. Faults are usually locked excluding abrupt movements with slippage that create earthquakes (Lutgens, F. & Tarbuck,
In this essay, the author
- Explains that the 1906 san francisco earthquake was a natural disaster that was estimated to be magnitude 7.8 and caused the casualties of 2,000 people.
- Describes the 1906 san francisco earthquake, a natural disaster that was responsible for structural damage and the lives of many people.
- Explains that the 1906 san francisco earthquake was worse due to the ruptured power lines, which became uncontrollable because the water mains were also broken.
- Explains that the 1906 san francisco earthquake was a natural disaster that was estimated to be magnitude 7.8 and caused the casualties of 2,000 people.
- Describes the 1906 san francisco earthquake, a natural disaster that was responsible for structural damage and the lives of many people.
- Explains that the 1906 san francisco earthquake was worse due to the ruptured power lines, which became uncontrollable because the water mains were also broken.
- Explains that the 1906 san francisco earthquake killed around 3,000 people and left countless residents homeless. the army provided housing for 20, 000 refugees in military camps.
- Explains that the 1906 san francisco earthquake was caused by the san andreas fault, a zone of seismic activity due to the tectonic plates moving against each under the earth.
- Explains how to identify safe places such as under a sturdy piece of furniture or against an interior wall in your home, office, or school so that when the shaking starts, you drop to the ground, cover your head and neck with your arms, and crawl to it and hold on.
- Explains the basics of getting ready for an earthquake, such as dropping down into the floor and covering head and neck with arms, if still in danger of falling objects and crawling under a sturdy desk or table.
- Explains that the 1906 san francisco earthquake was originated like every other earthquake with shaking and violent movements, which according to photographer ansel adams lasted forever.
- Explains that the 1906 earthquake was the most destructive natural event in the history of san francisco.
- Explains that the 99.7% chance of an earthquake in california as predicted by the usgs is important because people prepare by creating a plan.
1908 wordsRead More - Thromas By Zeta Stevens Why Do Earthquakes Occur?explanatory essayThe earth is split into four layers, inner and outer core, the mantle and crust. The top of the mantle and crust make up what is like the skin of our earth (see source 2). The skin is split up like a puzzle and we call these puzzle pieces’ tectonic plates (see source 1). These plates are constantly moving and the plate boundaries (edges of the plates) move and slide past one another. Sometimes as the plates move the plate boundaries become stuck. Pressure builds up in the stuck area over time and eventually breaks. This is why earthquakes occur due to the sudden movement of the plate sliding and breaking creating a fault line to go off. The fault line is the line on which the
In this essay, the author
- Explains that an earthquake occurs when a fault line goes off and parts of plates become stuck against one another.
- Explains that earthquakes occur on earth's fault lines, but no part of the earth is free from them. the pacific plate collides with the eurasian plate.
- Explains that earthquakes can cause other hazards such as tsunamis, avalanches, and landslides.
- Explains that an earthquake occurs when a fault line goes off and parts of plates become stuck against one another.
- Explains that earthquakes occur on earth's fault lines, but no part of the earth is free from them. the pacific plate collides with the eurasian plate.
- Explains that earthquakes can cause other hazards such as tsunamis, avalanches, and landslides.
- Explains that earthquakes are very common because the earth's tectonic plates are constantly moving. statistics show that over 1 million occur each year worldwide, but they can't be felt by humans.
- Describes the impacts of earthquakes on the economy, society, and environment.
- Explains that earthquakes have many impacts that affect the earth and us as humans. the 9.5 magnitude earthquake in chile killed more than 5000 people, and the 2011 christchurch earthquake left 100 000 homes needing repair.
- Explains that the earth is split into four layers: the inner and outer core, the mantle and crust, and the tectonic plates.
- Explains that earthquakes occur with the tectonic plates movements and with them colliding, sliding or doing both against each other.
1145 wordsRead More - The 1906: The Cause Of The Earthquake Of 1906opinion essayPeople will be relatively safe in buildings build since the 1970’s. However, this doesn’t mean everyone is safe. In fact the majority of buildings in the city today were built before then. Some businesses will be brought to a stand still for weeks, or even months. The economic impact will of a ’06 sized quake will be between $100 billion and $200 billion, and these effects will be felt worldwide. Chances our however that the next “big one” will be bigger than the 1906 earthquake. Ultimately, the impact of natural disasters, especially earthquakes, will be something we will always have to
In this essay, the author
- Describes the magnitude of the 1906 earthquake in san francisco. it ruptured along the san andreas fault northward and southward for 476 km (296 miles).
- Explains that the death toll is uncertain, but modern calculations approximate about 3,000 deaths at a minimum.
- Explains that the death toll has been revisited many times, the most recent of which was in 2005.
- Describes the magnitude of the 1906 earthquake in san francisco. it ruptured along the san andreas fault northward and southward for 476 km (296 miles).
- Explains that the death toll is uncertain, but modern calculations approximate about 3,000 deaths at a minimum.
- Explains that the death toll has been revisited many times, the most recent of which was in 2005.
- Describes how the u.s. chicago rescued 20,000 homeless people from the city's 400,000 people. the ship led them to tiburon, a less impacted area in the bay area.
- Explains that the earthquake leveled san francisco's buildings and social landscape. refugee camps were developed to aid people who lost their homes.
- Explains how the salvation army helped rebuild san francisco after the earthquake. it had feeding stations and shelters throughout the city and into oakland, helping thousands of survivors.
- Explains that soldiers provided valuable services during the first days after the earthquake, with fire still tormenting the entirety of san francisco. they aided the fire department in demolishing the buildings in the path of fires.
- Analyzes how mayor schmitz authorized federal troops, regular police force, and special police officers to kill any and all persons found engaged in looting or in the commission of any other crime. many stores and businesses were unable to gather any conclusive evidence.
- Opines that while soldiers helped rebuild the city and take care of refugees, there is a lot of debate as to whether the federal government responded adequately. under the command of frederick funston, troops were criticized for acting perhaps too bold.
- Argues that funston's men charged through the city dynamiting thousands of buildings. the practice is criticized today, because it might have spread fires more than eliminate them.
- Opines that funston's troops were robust on the streets, seizing private property like horse-drawn wagons and cars. dan kurzman, in his book "disaster," went even further in saying gen.
- Argues that the federal government was somewhat inactive in katrina because of the intense critique of their action in sf.
- Explains that california was the birthplace of seismic regulations for buildings in the united states. san francisco would have been safer if building codes were applied when the city was being built.
- Explains that the group concluded that buildings could have withstood the earthquake if they were well secured to their foundations and embodied "appropriate internal bracing."
- Explains that even with the seaoc's research and findings, not much action was taken on the federal, or a state level immediately after the earthquake.
- Explains that the national earthquake hazard reduction act was enacted in 1977, which focuses on issues related to earthquake hazards, such as risk assessment, prediction of earthquakes, and mitigation measures.
- Explains that the 1906 earthquake was an economic disaster, with property losses estimated at $400 million, which is the equivalent of a little less than $10 billion today, due to inflation.
- Explains that insurance companies faced astonishing claims of more than $250 million, mainly for fire damage, since earthquake damage was not covered in most insurance policies. the quake is the worst single disaster for the entire insurance industry.
- Explains that the 1906 earthquake was considered a "super cat" by the insurance industry. it took years to rebuild san francisco and overcome the effects.
- Opines that california is not yet ready for the next great earthquake. scientists and seismologists are pinpointing dangerous faults in california and around the world, and developing models for future earthquakes.
- Opines that people will be relatively safe in buildings built since the 1970's, but this doesn't mean everyone is safe. the economic impact of a '06 sized quake is between $100 billion and $200 billion.
- Opines that the 1906 earthquake was a lesson learned for california, the united states, and the world.
2545 wordsRead More - Power of the Quakeexplanatory essayAn earthquake is a vibration of the Earths surface that follows a release of energy in the Earths crust. There are various ways this energy is released. Manmade explosions, dislocation of segments of the crust or volcanic eruptions are all triggers for an Earthquake; however, most are caused by a slippage of faults. A fault is a fracture in the Earths crust along which two blocks of the crust have slipped within one another. These faults are grouped into three categories (normal, thrust and strike-slip) and are located all over the Earth.
In this essay, the author
- Explains how technology can reduce the loss of life in earthquake-prone areas. engineers have developed a number of different ways to build earthquake resistant structures.
- Explains dunegan, h.l., prediction of earthquakes home what’s new about ae/ms.
- Explains that earthquakes are caused by a slippage of faults, which are located all over the earth.
- Explains how technology can reduce the loss of life in earthquake-prone areas. engineers have developed a number of different ways to build earthquake resistant structures.
- Explains dunegan, h.l., prediction of earthquakes home what’s new about ae/ms.
- Explains that earthquakes are caused by a slippage of faults, which are located all over the earth.
- Explains that earthquakes are measured using seismographs and ground motions. seismograms reveal that seismic waves are elastic energy.
- Cites mooney, m.j. (1990). tsunami. (when the sea quakes) americas, vol. 42 issue 4.
1656 wordsRead More - Earthquake Essayexplanatory essayEarthquakes are caused by tectonic plates moving in the earth's crust. They either move apart or pull together at faults. Two forms of faults are normal faulting where the hanging wall moves downward causing rocks to be pulled apart by tension and reverse faulting, which is the opposite where the hanging wall moves upward casuing rocks to be forced together by tension. These movements cause tectonic plate boundaries called divergent boundaries, convergent boundaries and transform boundaries. Each boundary is different and play a
In this essay, the author
- Explains an earthquake is the shaking of the ground caused by sudden release of energy inside the earth's crust and the breaking and moving of tectonic plates along a fault line.
- Explains that earthquakes have three different types of shocks that are normally felt by humans: foreshocks, the main shock, and after.
- Explains that earthquakes are measured on two different types of seismometers: the richter scale and the modified mercalli intensity scale.
- Explains an earthquake is the shaking of the ground caused by sudden release of energy inside the earth's crust and the breaking and moving of tectonic plates along a fault line.
- Explains that earthquakes have three different types of shocks that are normally felt by humans: foreshocks, the main shock, and after.
- Explains that earthquakes are measured on two different types of seismometers: the richter scale and the modified mercalli intensity scale.
- Explains that earthquakes are classified as primary and secondary impacts. tsunamis, fires and landslides destroy everything in their path.
- Explains that earthquakes can't be predicted, as scientists have tried many different things to try to predict them, but all have failed.
- Explains that earthquakes are caused by tectonic plates moving in the earth's crust, which either move apart or pull together at faults.
879 wordsRead More - Earthquakes: One of the Most Potent Natural Powers on Earthexplanatory essay“Until fairly recently, geologists and other scientists were not totally sure what caused earthquakes. Now with swelling technology, the result of better monitoring, and an enhanced understanding of plate tectonics, they are able to give more solid explanations for them” (Briney 1). The first topic is what causes earthquakes but first let’s talk about the earth’s crust. The earth’s crust is comprised of massive rocks called tectonic plates. “There are a few handfuls of main plates and dozens of smaller, or minor, plates. Six of the majors are named for the continents embedded within them, such as the North American, African, and Antarctic plates. Though smaller in size, the minors are no less significant when it comes to shaping the Earth. The tiny Juan de Fuca plate is mostly responsible for the volcanoes that dot the Pacific Northwest of the United States. The plates make up Earth's outer shel...
In this essay, the author
- Explains that earthquakes are one of the most powerful natural powers on earth and regularly affect people around the world.
- Explains that the earth's crust is comprised of massive rocks called tectonic plates. the juan de fuca plate is responsible for the volcanoes that dot the pacific northwest.
- Explains fault lines are the boundaries between tectonic plates. most earthquakes occur along fissures in the planet's surface called faults.
- Explains that earthquakes are one of the most powerful natural powers on earth and regularly affect people around the world.
- Explains that the earth's crust is comprised of massive rocks called tectonic plates. the juan de fuca plate is responsible for the volcanoes that dot the pacific northwest.
- Explains fault lines are the boundaries between tectonic plates. most earthquakes occur along fissures in the planet's surface called faults.
- Explains that seismic waves erupt from a focus point and the focal depth is the depth underneath the earth's surface where the energy release was created.
- Explains that there are two different types of earthquakes; a regular earthquake on land and an underwater earthquake.
- Explains that earthquakes are the most deadly form of natural disasters, but there aren't any real positive effects.
- Explains that california banks have refined emergency planning systems, but whether those plans expect everything in the zone being shut down is something else. businesses are trying new things to get around catastrophic earthquakes and be able to move on without them hindering economic growth.
- Explains that seismographs help us measure earthquakes. the richter scale is a logarithmic scale, implicating that the numbers on the scale amount to factors of 10.
- Explains that micro quakes occur continuously, while moderate earthquakes measure less than 6.0 or so on the richter scale. scientists are still using foreshocks as a base.
- Explains that earthquakes are caused by friction and movement between tectonic plates. seismic waves disperse outwards from the focus point of an earthquake and travel inside the earth’s crust.
- Explains how a seismograph works and the richter scale.
- Analyzes the economic consequences of a catastrophic earthquake.
1919 wordsRead More - Earthquake Research Paperexplanatory essayThe earth has four major layers: the inner core, outer core, mantle, and crust. The crust and the top of the mantle make up a thin skin on the surface of our planet. This skin isn’t all in one piece. It is made up of several pieces covering the surface of the earth, like a puzzle. These puzzle pieces keep slowly moving around, sliding past one another and bumping into each other. We call these puzzle pieces tectonic plates. The edges of tectonic plates are called plate boundaries. Plate boundaries are made up of many faults, and most of the earthquakes around the world occur on these faults. The edges of the plates are rough and get stuck while the rest of the plate keeps moving. Eventually the plate edges of a fault unstick and results in an earthquake.
In this essay, the author
- Explains that the earth has four major layers: the outer core, mantle, and crust. this thin skin is made up of several pieces covering the surface of our planet, like a puzzle.
- Explains that when the friction of the edges of a fault is overcome, all the built up energy is released. this energy moves in all different directions.
- Describes the seismograph as a special instrument used to record earthquakes and is very sensitive.
- Explains that the earth has four major layers: the outer core, mantle, and crust. this thin skin is made up of several pieces covering the surface of our planet, like a puzzle.
- Explains that when the friction of the edges of a fault is overcome, all the built up energy is released. this energy moves in all different directions.
- Describes the seismograph as a special instrument used to record earthquakes and is very sensitive.
- Explains that earthquakes have unexpected consequences, such as tsunamis, buildings collapsing, structures distorting, landslides, and liquefaction.
- Explains how earthquakes work. howstuffworks, inc., 16 jan. 2001.
- Explains earthquakes occur when two pieces of the earth suddenly slip past one another. foreshocks happen before the largest earthquake in the same place.
- Explains how scientists measure earthquakes by measuring the size of the fault at the earthquake's origin and the slip rate.
752 wordsRead More - Philippines Earthquake Dbqexplanatory essayEarthquakes can be very dangerous but what matters the most is that everybody is safe, and that we need to work together. One earthquake, in the Philippines, was truly devastating. It was classified as a 7.2 magnitude. The Philippines responded very well by gathering their resources, spreading the word, and giving donations. They bounced back very quickly.
In this essay, the author
- Explains that earthquakes can be dangerous, but everyone is safe and that we need to work together. the philippines responded well by gathering resources, spreading the word, and giving donations.
- Explains how the philippines responded quickly to the earthquake by posting on facebook about the disaster and that they needed help.
- Explains how the philippines responded by giving donations to people in need. people in other countries are donating food to the red cross and ifrc for the quake zones.
- Explains that earthquakes can be dangerous, but everyone is safe and that we need to work together. the philippines responded well by gathering resources, spreading the word, and giving donations.
- Explains how the philippines responded quickly to the earthquake by posting on facebook about the disaster and that they needed help.
- Explains how the philippines responded by giving donations to people in need. people in other countries are donating food to the red cross and ifrc for the quake zones.
- Opines that the philippines bounced back from this natural disaster by gathering resources, spreading the word, and giving donations.
430 wordsRead More - Haiti After the Earthquakeanalytical essayThe effects caused by earthquakes are devastating. They cause loss of human life and have effects on infrastructure and economy. Earthquakes can happen at any time anywhere. In January 12, 2010 an earthquake of a magnitude of 7.0 hit the nation of Haiti. An estimation of 316,000 people were killed, and more than 1.3 million Haitians were left homeless (Earthquake Information for 2010). Haiti was in a terrified chaos. After the earthquake, families were separated because many of the members were killed. Homes, schools, and hospitals were demolished. People lost their most valuable belongings. It will take time for the country to recover from this terrible disaster. The long damages are economic issues, health-state, and environmental issues that effect in the beautiful island of Haiti.
In this essay, the author
- Analyzes the devastating effects of earthquakes on haiti's economy and infrastructure. 316,000 people were killed and 1.3 million haitians were left homeless.
- Explains that haiti is one of the poorest countries in the world. after the 2010 earthquake, the economy was affected by joblessness, lack of foodland, and clean water. companies like royal oasis are creating hundreds of jobs.
- Analyzes how haitian children suffered psychological trauma after the earthquake. they narrate their experiences and feelings.
- Analyzes the devastating effects of earthquakes on haiti's economy and infrastructure. 316,000 people were killed and 1.3 million haitians were left homeless.
- Explains that haiti is one of the poorest countries in the world. after the 2010 earthquake, the economy was affected by joblessness, lack of foodland, and clean water. companies like royal oasis are creating hundreds of jobs.
- Analyzes how haitian children suffered psychological trauma after the earthquake. they narrate their experiences and feelings.
- Opines that the fate of many haitian children is uncertain. they hope to overcome the psychological trauma caused by the earthquake.
- Analyzes the effects of the earthquake on haiti's economy, psychology, and environment.
- Explains that natural disasters cause terrible destruction and earthquakes left haiti in limbo of hope.
- Analyzes leinwand, donna, marisol bello, and martha t. moore's "in haiti, children are the most vulnerable - usa today.com."
- Recounts how michele and his mother spent the night in a yard the cold is their only blanket. sadness can be seen on the faces of children that in front of the tv cameras in tears in their eyes.
- States that earthquake information for 2010 was released by the u.s. department of the interior.
- Explains hunt, jonathan, and silja halle. "us slave." : haiti deforestation.
1274 wordsRead More - Earthquakesexplanatory essayAn earthquake is the shaking of Earth’s surface caused by rapid movement of the earth’s rocky outer layer. “Earthquakes occur when tension stored in rocks suddenly releases” (Vogt 12). Faults occur at these places where rocks on either side of the crack have moved. Oceans are very common places for major tectonic plates to shift. When two plates separate, new oceanic crust is made near the fault as magma rises and eventually sets on the sea floor. If the plates on either side of the fault continue to spread then the ocean slowly becomes larger in width. This is called seafloor spreading. Mid-ocean ridges are characterized by a crack like valley at the fault. This crack like valley is caused by the tension pulling the plates apart, causing normal faulting to occur a number of times in the divergent boundary.
In this essay, the author
- Explains that earthquakes can be recorded by seismometers, which are located all over the world.
- Explains that a dip-slip fault occurs when two blocks of earth are thrust toward each other, causing one to ride up over the other.
- Explains that a subduction zone is where two plates collide and one is forced below the other.
- Explains that earthquakes can be recorded by seismometers, which are located all over the world.
- Explains that a dip-slip fault occurs when two blocks of earth are thrust toward each other, causing one to ride up over the other.
- Explains that a subduction zone is where two plates collide and one is forced below the other.
- Explains that seismologists can measure movement along major faults using global positioning satellites to track the relative movement of the rocky crust.
1338 wordsRead More