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impacts of earthquake hazards
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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.”
Uyematsu, Amy. "The Emergence of Yellow Power." Diss. Arkansas Tech U, 1969. ATU, 1969. Web. 22 Apr. 2014. .
The 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
From studying the science behind the San Francisco earthquake, scientists have made a number of important discoveries involving how earthquakes function. At 5:12 on a fateful April morning in 1906, the mammoth Pacific and North American plates sheared each other at an incredible twenty-one feet along the San Andreas fault, surpassing the annual average of two inches (“San Francisco Earthquake of 1906”) (“The Great 1906 Earthquake and Fires”). A few seconds later, the destructive earthquake occurred. The ground shifted at almost five feet per second, and the shaking could be felt all the way from southern Oregon to southern Los Angeles to central Nevada (“Quick”) (“The Great 1906 San Francisco Earthquake”). In fact, the earthquake could be registered in a seismograph on Capetown, South Africa, an astounding 10,236 miles away...
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).
...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.
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. .
The state of Illinois is at risk from two major seismic zones, the New Madrid Seismic Zone, and the Wabash Valley Seismic Zone. The New Marid Seismic Zone is located in the Central Mississippi Valley and includes portions of Alabama, Arkansas, Illinois, Indiana, Kentucky, Missouri, Mississippi, and Tennessee. The Wabash Valley Zone is located between southeastern Illinois and southwestern Indiana.
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.
Rotatori A. F., & Fox, R. (1989). Obesity in children and youth: Measurement, characteristics, causes, and treatment. Springfield, III., U.S.A: C.C Thomas
Kolassa, I., & Elbert, T. (2007). Structural and functional neuroplasticity in relation to traumatic stress. Current Directions in Psychological Science, 16(6), 321-325.
Kiess, W., Claude Marcus, and Martin Wabitsch. Obesity In Childhood And Adolescence. Basel: Karget, 2004. eBook Collection (EBSCOhost). Web. 19 Nov. 2013.
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
Jones, Pamela. "Obesity-”Children and Teens." Mississippi Baptist Health Systems. EBSCO, 11 Dec. 2010. Web. 04 Mar. 2011. .
In this essay, you learned about what earthquakes are, tectonic plates, some powerful earthquakes around the world, the San Francisco earthquake 1989, predicting and preventing earthquakes. Thank you for reading!