Seismology

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  • Earthquake Hazard Analysis Essay

    not avoid the fact that seismic analysis has become much more significant. Earthquake will result in severe consequences such as large financial losses and companies bankrupt, people unemployed and even fatalities. Although earthquakes are not usual natural catastrophes, it is necessary to rationally analyze seismic risk on different kinds of fields like geology, earthquake monitoring and civil engineering. A recent title of combining these modern methods is Performance-based Earthquake Engineering (PBEE). It includes Probabilistic Seismic Hazard Analysis, fragility analysis of structure, casualty and financial loss estimation. In practice, probabilistic terms are used to identify specific details in most of problems related with seismology. Generally, the earthquakes people always talk about are those occur at the first moment and lead to worst influence. However, these so-called earthquakes are definitely not the only trouble we should worry about. After an earthquake of large magnitude (referred to as the main-shock), many induced events or aftershocks will occur. We will expect the inter-arrival times between aftershocks to be much shorter just after the main event. If the main-shock was near the structure of interest, so will be at least some of this family of aftershocks. Aftershock ground motions may cause weakening or collapse of structures perhaps already damaged (but not yet repaired) by the main-shock. In addition, aftershocks (implicitly or…

    Words: 959 - Pages: 4
  • Case Study: Can Animals Predict Earthquakes

    The idea that animals can predict and warn us of oncoming seismic disasters has been prevalent throughout history, from as far back as ancient Greece to the modern era (Ault 2016). This list of cases appears to be anecdotal, relying on subjective impressions and hindsight biased samples, but civilizations across the globe have relied on animals to warn them of oncoming danger for centuries. While, as the saying goes, the plural of anecdote is not data, anecdotal information can help one…

    Words: 1494 - Pages: 6
  • Earthquake Of 1906 Analysis

    The earthquake of 1906 was a horribly destructive and stunning event. It was described by people that were there, some of them described it in books. One of these books in the novel Dragonwings, where a character named Moonshadow feels the ground twist and turn between his feet. There are also articles found that explain the natural phenomena of the terrible earthquake that occurred on April 18, 1906. The name of one remarkable article that gives many facts is called “Web Resource”. Though…

    Words: 305 - Pages: 2
  • Cause Of The San Francisco Earthquake

    San Francisco – The Bay Area was shaken to its core Monday morning when an earthquake struck around 7:12 a.m. with a preliminary magnitude of 6.4. One San Francisco resident was awakened that morning not by the quake, but by a chunk of cement flying through his kitchen. Michael Beamer said he was eating breakfast before the earthquake began, and when it did he ducked and covered under his kitchen table. “I was eating my breakfast and the room started rolling. I dove under the table just as I…

    Words: 335 - Pages: 2
  • Cypress Street Viaduct Case Study

    The collapse of the Cypress Street Viaduct in 1989 was a disaster caused by an earthquake. On October 17, 1989 an earth quake occurred around the Santa Cruz bay area. The Cypress Street Viaduct was the first double-decker viaduct in California and it was made in 1955 – 1957 and it cost 100 million dollars. On October 17, 1989, the southern portion of the structure collapsed during the 1989 Loma Prieta Earthquake, due to ground movement and structural flaws. When in use, the upper and lower tier…

    Words: 374 - Pages: 2
  • Chile Earthquake Essay

    Earthquake Case History: 2010 Mw = 8.8 Mega-thrust Earthquake, Maule, Chile 5/2/13 By Travis Eddy 1. Introduction In early 2010 central south Chile experienced a Mw = 8.8 earthquake and large tsunami waves that devastated areas on the Chilean Pacific coast, nearby offshore islands, and areas near the epicenter. In addition to the tsunami, the earthquake had many other geological consequences including aftershocks, terrestrial and submarine land-sliding, elevation changes, and a gravity…

    Words: 2708 - Pages: 11
  • Elysium Movie Analysis

    Elysium Questions 1. What do you think about the above establishing shots of Los Angeles and Elysium? Extreme long shot is used for emphasis the environment of two different place. The Los Angeles in Earth where ever be the civilized town was shown in the ruin town. The extreme long shot gives the picture of devastation; pollution, disease, and homeless. On the other hand, the Elysium was shown in productive place. Elysium is the place for wealth people, there are high-technology building…

    Words: 1318 - Pages: 6
  • Essay On Earthquake In Chile

    On the 27th of February, 325 kilometres southwest of Santiago at 3:34 am an 8.8 magnitude earthquake struck offshore central Chile leaving 122 aftershocks of magnitude 5.0 or greater which is The intense trembling lasted for around three minutes causing large-scale damage and affected approximately 80% of the population and leaving over a million without a home. Coastal Chile is well known for having deadly earthquakes, with a series of thirteen earthquakes 7.0 magnitude or higher since 1973.…

    Words: 444 - Pages: 2
  • Causes Of The San Francisco Earthquake Of 1906

    Source 1: Imagine being awakened early in the morning by the ground shaking so hard that you're thrown out of bed and across the room--if you're even lucky enough to be alive. On April 18, 1906, at 5:12 a.m., an earthquake hit San Francisco, destroying much of the city. San Francisco was a growing city with many closely spaced wooden homes and unsupported brick buildings. The moment the earthquake started, buildings collapsed, water mains broke, and a huge fire broke out that spread rapidly…

    Words: 256 - Pages: 2
  • San Francisco 1906 Earthquake

    Earthquakes can bring unfortunate events, such as destroyed cities, many losses and limited resources. An example of this is “The San Francisco 1906 Earthquake and Fire left around 300,000 people homeless and the bay area in despair. A number of camps were set up around the city to deal with the destruction. Many people also left the city by the bay in search for more stable grounds.” stated from San Francisco 1906 Earthquake & Fire. (Paragraph 15). (https://www.sftourismtips.com…

    Words: 898 - Pages: 4
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