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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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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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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AN EARTHQUAKE IN AUSTRALIA Australia has a relatively low rate of seismicity due to its location towards the centre of the Indo-Australian Tectonic Plate. Earthquake activity is much higher around the margins of the Indo-Australian Plate‚ for example In places such as Indonesia‚ Papua New Guinea and New Zealand. Nevertheless‚ many historic earthquakes have Occurred in Australia and Geosciences Australia’s database (QUAKES) contains information on tens of thousands Of historic earthquakes in the
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but unfortunately the massive earthquake that hit on 26th December 2003 at 05:26 local time destroyed the entire city. An estimation from the United States Geological Survey reports that the earthquake measured 6.6 on the Richter scale‚ they also say that the epicentre was 185km southeast of Kerman. Before After The Earthquake This huge earthquake took the lives of 26‚271 people
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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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September 2nd‚ 1886 August 31‚ 1886‚ was one of the worst days in Charleston‚ that day we had a major earthquake of the likes of which I have never felt. The day started off as a nice calm day. My mom and I were reading a book and then all of a sudden I could hear this rumbling sound that seemed to come from inside earth. It started off as a gentle vibration then after a few minutes the noise and the vibrations became more violent. It was as if the earth had a terrible stomach ache. The shake
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Earthquakes in GCC An Earthquake known also as tremor is resulted from a sudden release of energy ‚which takes place in the earths crust‚ which then creates seismic waves. They are vibrations triggered by movement of rocks that have been strained (deformed) beyond their elastic limit. This activity called seismicity or seismism of an area refers to type ‚ size and frequency over a time period. Earthquakes are measured using many instruments ( up to atleast 20 different types
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Cause and effect of earthquakes The ground trembles‚ shakes and growls. Pictures that were once hanging so beautifully on the wall smash to the ground exploding into glittery slivers of broken glass‚ roadways break apart‚ engulfing whatever was in its path‚ never to be seen again. For many‚ this would seem to be the makings of a fictional horror movie created by Hollywood with intent to frighten a person and to play with ones senses. For those who live in the areas depicted by film‚ this is
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