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Bahasa indonesia buku Geography, A Spatial Interaction
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The country of Indonesia has been the heart of many natural disasters, primarily due to the geographic proximity to large bodies of water. Tsunamis and typhoons are frequent, as well as, small-scale to large-scale mega thrust earthquakes which results from several extremely active subduction zones. Several active subduction zones are found there, the Indian-Australian plate moving beneath the Eurasian plate, moving at a rate of about 50-70 mm per year as well as, the Pacific plate moving beneath the Eurasian plate, moving at a rate of about 100- 110 mm per year. Earthquakes that shake this nation are no strangers to the inhabitants, who are frequently interrupted of their daily lives, and have known such impacts can be disastrous.
Indonesia borders three major tectonic plates: the Eurasian Plate, the Pacific Plate and the Indian-Australia Plate. According to MCEER a research group from the University of Buffalo who study natural disasters stated that, “the country is ranked as the world’s fourth most populated nation and is made up of 13,000 islands, located around the ring of fire, and is where ninety percent of earthquakes occur” (MCEER, 2009). The region of Java, located on the coast of the Indian Ocean and the Banda Sea has been the prime location in the past years. Natural hazards pose threats towards human life as well as infrastructural damages, a few examples are: occasional floods, severe droughts, tsunamis, earthquakes, volcanoes, and forest fires. According to a study conducted by Rusnardi Rahmat Putra, Junji Kiyono, Yusuke Ono, and Hari Ram Parajuli from Kyoto University, Japan and Padang State University, Indonesia. Their study compiled data over the period from 1779-2010 and found that there had been f...
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Padang, Indonesia: A Prospective Cohort Study Of Adult Survivors." Global Health Action 5.(2012): 1-11. Academic Search Complete. Web. 28 Jan. 2014.
Verstappen, H. TH. "Indonesian Landforms and Plate Tectonics." Jurnal Geologi Indonesia. 5.3
(2010): 197-207. Web. 28 Jan. 2014.
Whittaker, Andrew. "Indonesia Earthquakes 2009: News, Photos and Videos." MCEER
Earthquake Engineering to Extreme Events. the Research Foundation of the State of New York, n.d. Web. 28 Jan 2014. .
Tang, Alex K. Padang, West Sumatra, Indonesia, Earthquake of 2009: Lifeline Performance . 3.
Reston: American Society of Civil Engineers, 2013. 1-155. eBook.
United States Geological Survey. U.S. Department of the Interior . Java, Indonesia Magnitude 7.0.
United States Geological Survey (USGS), Web.
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...
New Madrid earthquake of 1811-1812 was known to be “one of the most powerful earthquake felt throughout the Eastern United State”(2,75) . “December 16, 1811 at 2 a.m”(1). , the first earthquake had struck in the Northern part of Arkansas through Missouri. “This earthquake occurred in Central Mississippi Valley”(2,2) . New Madrid fault is located in the northern part of Missouri and southern part of Illinois. On the morning of December 16, 1811, when the earthquake struck; “people were scared”(10,26) , they ran out of their houses as the trees were falling onto the ground and the ground was breaking up. After the earthquake ended, around 7 a.m., one of the largest aftershock occurred and it was known to be a destructive shock because
The 2004 Indian Ocean earthquake and tsunami took place on December 26th, 2004 and had a magnitude of 9.15. The cause of the Sumatra Tsunami was due to the sliding of two tectonic plates. Sumatra, an island in Indonesia, is situated on the boundary of the two plates; part of Sumatra is situated on the India/Australian plate and the other part is on the Eurasian plate. The Indian/Australian plate and Eurasian plate connect on the ocean floor at the boundary, a little over 100 miles off the short of Sumatra. Sumatra was one among the many countries that was impacted by these natural disasters. To fully understand the Sumatra Tsunami one must examine the events that led up to it, what a tsunami is, and the damage caused.
Before the San Francisco earthquake, not much was understood about earthquakes like how and where they occurred, or the destruction that could occur and the theory of plate tectonics was over a half-century away. Now scientists can answer the following questions: where a strong quake will likely happen, how probable it is, how intense it will be, how will the infrastructure fare, where to avoid building critical structures, and how do we design and build earthquake resistant structures. Scientists that flourished after this earthquake were Lawson, Reid and Gilbert but the most significant discovery is credited to Henry Fielding Reid, Professor of Geology at John Hopkins University. Most of the building structures that were destroyed or damaged were made out of wood. About 24,500 buildings out of the 28,000 buildings were built with wood structures and the other 3,500 buildings structures were made out of brick. With almost 90 percent of the structures being wood, fires and gas caused most of the
Healy, J. H., Rubey, W. W., Griggs, D. T., & Raleigh, C. B. (1968, September). The Denver Earthquakes. Science, 161(3848), 1301-1310. Retrieved from JSTOR database.
Before examining the Northridge event, understanding the naturally occurring hazard that is an earthquake will help to better understand exactly what happened and why it was such an important geological event. With four distinct layers, two layers, the crust and upper portion of the mantle, compose the skin that is the surface layer of the Earth. The crust is not a single, continuous piece. It is actually several different pieces, or plates, that come together to form the puzzle that comprises the surface of the Earth. These plates are in constant motion rubbing against one another. These areas, known as fault lines, where the plates rub up against one another have spots where one plate ”gets stuck while the rest of the plate keeps moving. When the plate has moved far enough, the edges unstick and is how most of the earthquakes around the world occur” (Wald, 2012). The energy stored from the friction of the two plate...
"The Great Quake: 1906-2006 / Rising from the Ashes." SFGate. N.p., n.d. Web. 10 May 2014.
Additionally, this earthquake occurred on a thrust fault. This fault was a subduction zone slip which occurred primarily beneath the ocean were the Pacific plate plunges underneath the North American plate. This sudden upward movement of the sea floor along the rupturing fault generated a massive tsunami. This vertical deformation
The country of Japan is an island nation, which is separated from Mainland Asia by the Sea of Japan. (“Facts about Japan”) On the west side it is surrounded by the Northern Pacific Ocean. It has no land boundaries. Japan has four main islands: Honshu, Hokkaido, Kyushu, and Shikoku. Seventy percent of Japan consists of mountains and volcanoes. (“Facts about Japan”) The climate in Japan is very tropical in the southern parts and much cooler in the northern parts. (“Facts about Japan”) Based on location, Japan is prone to typhoons and heavy snowfall in the north which can cause landslides and avalanches. (“Facts about Japan”) Japan is part of the Ring of Fire of the Pacific. (“Facts about Japan”) The ring of fire is where the earthquakes and volcanoes generally occur in the basin of the Pacific Ocean. (“Facts about Japan”) About 90 percent of the world’s earthquakes occur along the Ring of Fire. (“Facts about Japan”) Over a thousand earthquakes occur each year in Japan. (“Facts about Japan”) In March of 2011, Japan suffered one of the largest most powerful earthquakes to hit Honshu, Japan. (“Facts about Japan”) The earth...
The Tohoku earthquake caused by the movement of the Pacific plate slides underneath the Eurasia plate at the rate of three inches per year, associated with Japan Trench
Authorities have attempted to implement codes or regulations, but that has proved to be very difficult tasks becasue there are many variables that effect the dynamic response of buildings. One way to try to avoid disaster is to evaluate seismic risk is to look at a buildings hazards, exposure, vulnerability, and location. Hazards are, for example, landslides ad soil type. Exposure is a building's occupancy and function. Vulnerability is the expected performance of a building's system, and location is how often earthquakes occur in the area. (Lagorio)
Researching and studying the theory of plate tectonics is incredibly important to earth science and the world. With your support we will be able to predict and prepare for not only earthquakes, but also volcanic eruptions and tsunamis. The theory of plate tectonics is not over, the earth is always changing and moving, so the theory of plate tectonics must also change with the earth and not just be based on only the past. With your continuing investment we will be able to adapt, learn, and protect ourselves from the natural occurrences that can be minor on
Johns Hopkins University. (2009, March). In disaster-prone areas, construction needs a new approach. Retrieved from http://phys.org/news157051992.html
Earthquakes belong to the class of most disastrous natural hazards. They result in unexpected and tremendous earth movements. These movements results from dissemination of an enormous amount of intense energy in form of seismic waves which are detected by use of seismograms. The impact of earthquakes leaves behind several landmarks including: destruction of property, extensive disruption of services like sewer and water lines, loss of life, and causes instability in both economic and social components of the affected nation (Webcache 2).
The first thing I would like to do is explain the current process that we use to attempt to predict these natural disasters. The act of predicting an earthquake is normally described as “as the specification of the time, location, and magnitude of a future earthquake within stated limits.” (Earthquake Prediction) Now this is also a completely different process than earthquake forecasting which is more so distinguished as the general assessment of the hazards that an earthquake presents within a given area, including the magnitude and frequency that is associated with that earthquake. We have in place, in a lot of countries, and early warning system, but this can also be distinguished from predicting earthquakes because of the fact that these systems only give about a couple of seconds of warning compared to what we would like it to be. When we speak about the prediction of ...