EARTHQUAKES Introduction and Terminology • Vibrations in the earth’s crust that occur when strain in the crust is suddenly released by displacement along a fault line • Focus = point at which an earthquake originates inside the earth. May be many km below surface • Epicentre = the point on the earth’s surface directly above the focus. Strongest shock normally felt here. Most damage usually occurs here. • Seismology = the study of earthquakes – from Greek – seio – to shake
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Earthquake Resistant Bridges Jacqueline Stoy 4/24/2013 Geography of Cultural Diversity 3350:275 Tuesday/Thursday 12:05-12:55 Throughout history‚ bridges have been a primary means of transportation. Unfortunately‚ natural disasters have come to destroy such bridges on many occasions. One of the most deadly natural disasters to face the bridges is earthquakes. The movement of the ground causes the supporting beams and columns to twist and collapse‚ often resulting in injury or death for
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strike-slip earthquake occurred on 12th January 2010‚ 25km to the WSW of the capital Port Au Prince at a depth of 13km and had a magnitude of 7.0 Mw (“Magnitude
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and the Creation of Hindi Media Communities in Singapore Arunajeet KAUR and Faizal YAHYA Indian communities in Singapore‚ especially of non-Tamil sub-ethnicity‚ have received renewed impetus to replenish their cultural ties with India as a homeland with the advent of Hindi Cable channels such as Zee TV‚ Sony Entertainment‚ and Star Plus. The availability of cable networks in the early 1990s and the proliferation of Hindi media channels have led to a renaissance of Hindi culture‚ fashion‚
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Earthquakes and Seismic Waves Earthquake-is violent shaking of Earth’s crust Focus-exact point within the crust where the fist movement occurs Epicenter-point on Earth’s crust directly above the focus Types of Seismic Waves P Wave Primary-1st Fastest Accordion-in and out S Wave Secondary Snake-like Can’t travel through liquid Surface Wave-roll through the top of the crust creating the most damage Measuring Earthquakes Mercalli scale -measures damage The Richter
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Earthquake Resistant Building Construction - 1 A short Research Paper on Affordable Solution for Earthquake Resistant Building Construction in Haiti by Dawang Sherpa Submitted to Southern Alberta Institute of Technology-SAIT Calgary‚ Alberta February 24‚ 2010 Table of Contents 1. Introduction 2. Some Concepts on Earthquake Resistant Construction 2.1 2.2 2.3 3.1 Adobe Buildings with Earthquake Resistant Components 3.2 Rice Straw/Wheat Straw Buildings 3.3 Bamboo & Wooden Houses 3.4
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been struck by an earthquake. You are a scientist with the USGS and need to figure out all the specifics on the earthquake because an earthquake has never occurred here before. You have a few things to do as a person working for the USGS to keep your job as the seismologist on staff. 1. Using the 3 seismograms recorded‚ figure out the epicenter location using the data and the P/S wave time-travel graph. One of the seismograms has been done for you. 2. Determine if the earthquake came from a fault
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1.Earthquakes 1. According to dictionary.reference.com an earthquake is a: Series of vibrations induced in the earth’s crust by the abrupt rupture and rebound of rocks in which elastic strain has been slowly accumulating. The earth is made up of tectonic plates these are massive slabs of rock floating on magma ‚as the plates move about‚ they spread apart‚ collide‚ or slide past each other‚ This is the main cause of volcanoes and earthquakes Earthquakes occur in many regions all over the world
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Earth’s Newest Superhero: Ionospheric Earthquake Prediction‚ How it May Change the Lives of Those Effected Abstract Making an earthquake forecast that is successful is still one of the biggest challenges before the scientists. Losses caused by earthquakes alone are greater than the loss caused by any other natural calamity. Many attempts have been made from ancient times to predict seismic events‚ but success has not been achieved yet. This is about to change with the study
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others‚ but no matter the severity‚ there is usually a loss‚ and a cry for help. The first one I want to talk about is the earthquake that hit Haiti in 2010. By January 24th‚ at least 52 aftershocks (a smaller earthquake following the main shock of a large earthquake)‚ measuring 4.5 or greater had been recorded. An estimate of three million people were affected by the earthquake. Death toll estimates ranged from 100‚000 to 160‚000. 316 total had been affected overall. Estimated 250‚000 residences and
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