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Impacts of earthquake hazards
The consequences of earthquakes
The consequences of earthquakes
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Major Earthquakes are Inevitable in Indiana’s Future An earthquake felt throughout the Midwest on June 18 was a shaky reminder that earthquakes can occur anywhere. The earthquake, whose epicenter was located north of Evansville, was felt through most of Indiana and surrounding states, as reported by the Indianapolis Star. The quake was not the largest in Midwestern history, only registering a 5.0 on the Richter scale, nor did it do much damage. However, it was a wake-up call reminding those who haven’t paid attention to past warnings about the possibility of larger, more destructive earthquakes. Earthquakes, by Webster’s dictionary definition, are, “a shaking or trembling of the earth that is volcanic or tectonic in origin.” World Book Encyclopedia reports scientists believe that more than 8,000 earthquakes occur each day without causing damage. A little more than 1,000 each year are strong enough to be felt. Earthquakes occur in the general sense, anywhere on land. Other earthquakes go by different names, such as volcanic eruptions and tsunamis, large tidal wave storms that occur underwater, primarily in the Pacific Ocean. Earthquakes 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... ... middle of paper ... ...nd others for injuries, look for and extinguish small fires, inspect your home for damage, listen to the radio for instructions, and expect aftershocks. Tectonic plate movement can occur as close as two and up to 450 miles below the Earth’s surface. According to the Indiana Geological Survey, Indiana’s fault lines are further underground than those in California and Alaska, causing more minor quakes in the Midwest. However, Hoosiers should heed the recent earthquake as a warning for future quakes. Earthquakes can and do happen in Indiana, and almost anywhere else in the world. This is the one natural disaster that people cannot avoid no matter their location on Earth. And, being unprepared can have devastating results. Samuelson said, “Another earthquake or series of them the size of the New Madrid earthquakes is inevitable in Indiana’s future.”
Earthquakes are best described as a shaking or vibration of the ground caused by breaking of rock. Sometimes they are very strong and other times you would hardly notice them. This shaking occurs when stress that builds up in the crust is suddenly released as the crust breaks free and/or slides against the other pieces of crust. Earthquakes may also be thought of as the breaking of a popsicle stick by applying pressure to both ends at the same time. Should you try this experiment , you will feel the pressure build up as you apply more force until the stick snaps. When the stick snaps you will feel an instant of pain at your fingers as the stress reduces and energy waves move throughout the stick. When the earth's crust is placed under similar types of stress, binding as the stress builds, it will also snap and release the energy into the surrounding rocks, 'ooch'. Thinking about earthquakes will become more clear if you try another experiment.
Earthquakes play a major role into understanding the composition and materials that exist within the Earth (Merali and Skinner, 2009, p.252). Earthquakes are the main source of insight into the inner workings of the earth, due to the nature of the seismic waves they produce. P and S waves are reflected and refracted at different boundaries within the earth, and this enables seismologists to make inferences about the internal composition and structural of planet Earth. (Merali and Skinner, 2009, p.252).
Hazards pose risk to everyone. Our acceptance of the risks associated with hazards dictates where and how we live. As humans, we accept a certain amount of risk when choosing to live our daily lives. From time to time, a hazard becomes an emergent situation. Tornadoes in the Midwest, hurricanes along the Gulf Coast or earthquakes in California are all hazards that residents in those regions accept and live with. This paper will examine one hazard that caused a disaster requiring a response from emergency management personnel. Specifically, the hazard more closely examined here is an earthquake. With the recent twenty year anniversary covered by many media outlets, the January 17, 1994, Northridge, California earthquake to date is the most expensive earthquake in American history.
benchmark for the future, and integrated investigation into the effects of earthquakes in the U.S.
According to the Center for Disease Control (CDC) about “17% (or 12.5 million) of children and adolescents aged 2-19 years are obese” (Moreno et al., 2013 P.157). “Surveys administered in 1976-1980 and 2007-2008 show that the prevalence of obesity has changed from 6.5% to 19.6% among children 6-11 years old age and from 5.0% to 18.1% for those aged 12-19 years (Moreno et al., 2013 P.157).
Kolassa, I., & Elbert, T. (2007). Structural and functional neuroplasticity in relation to traumatic stress. Current Directions in Psychological Science, 16(6), 321-325.
...ome home from the war who suffer from PTSD. Schacter (1999) states, “Recent PET studies of patients with PTSD have revealed activation in a variety of brain regions previously implicated in fear and anxiety, including the amygdala…” (p. 18).This shows that persistence is largely influenced by emotions.
Because they are becoming more and more obese, children in America today may suffer the consequences of not having good health when they get older and of living a much shorter life than today’s adults. Contrary to many beliefs, “obesity, which used to be a middle-aged and later phenomenon, now, has spread to younger ages, in the context of a major decrease in physical activity” said Caleb Finch (“Wasowicz”). More than half the time, this obesity follows a child into their adulthood. Researchers are frequently asked many questions about the causes of obesity, and they are frequently finding answers. Sometimes, parents are too scared to inform their children and doctors are afraid of upsetting their patients. Also, food in larger, unhealthier portions is easier to access than healthy foods, and many children do not exercise as much as they should. Obesity can have detrimental effects on a child’s physical and mental well being.
The hippocampus is the part of the brain that encodes threatening events into memories. Studies have shown that the hippocampus appears to be smaller in some people who were victims of child abuse or who served in military combat. Research will determine what causes this reduction in size and what role it plays in the flashbacks, deficits in explicit memory, and fragmented memories of the traumatic event that are common in PTSD.”
Ludwig, David S. "Childhood Obesity — The Shape of Things to Come." The New England Journal of Medicine. Massachusetts Medical Society., n.d. Web. 11 Dec. 2013. .
... mitigation strategies. Analysis of several landslides within the New Madrid Seismic Zone indicated that the landslides were stable, but failure is possible during an earthquake of the magnitude experienced in 1812.
Rotatori A. F., & Fox, R. (1989). Obesity in children and youth: Measurement, characteristics, causes, and treatment. Springfield, III., U.S.A: C.C Thomas
Snyder, TD. “Obesity and Overweight for Professionals.” Centers for Disease and Control Prevention. CDC, 17 April 2013. Web. 3 Apr 2014. http://www.cdc.gov/obesity/childhood/problem.html
If you don’t know already, an earthquake is a natural disaster. During an earthquake, the ground shakes and rolls, like the waves of the ocean. On top of that, some earthquakes can be really destructive. Buildings can get knocked down, fires can start, the street can open and close,
Jones, Pamela. "Obesity-”Children and Teens." Mississippi Baptist Health Systems. EBSCO, 11 Dec. 2010. Web. 04 Mar. 2011. .