The worst earthquake Haiti has experienced in two centuries has hit south of the capital Port-au-Prince on Tuesday (12/01/2010)‚ destroying homes‚ hospitals‚ schools and effecting up to three million people. The earthquake hit at 4:53 PM (Pacific Time)‚ 25 km southwest of Port-au-Prince. The initial shock registered at a magnitude of 7.0 and was followed by two aftershocks of magnitudes of 5.9 and 5.5. More aftershocks are expected to follow in the coming days. The focus occurred at a depth of
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The Wall Street Journal opens by defining the Haiti Earthquake as the strongest to hit the Caribbean in more than two centuries. Various witness reports were included‚ one of which from the Administer of Mercy and Sharing in Haiti: a charity that houses 109 orphans‚ notes the various dead bodies lying on the street‚ the numerous injured citizens‚ and the ringing cries of help in an area just 10 miles outside of the earthquakes epicenter. The report specifically describes the devastated infrastructure
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INTRODUCTION 1 HOW EARTHQUAKES OCCUR 2 Fault types 3 Earthquake fault types 3 Different types of Faults 3 Tidal forces 5 Earthquake clusters 6 Aftershock 6 Earthquake swarm 6 Earthquake storm 6 METHODS USED IN MEASURING EARTHQUAKES 6 The Richter Scale 6 The Mercalli Scale 7 HAZARDS CONNECTED TO EARTHQUAKES 8 MEASURES TAKEN TO MINIMIZE EARTHQUAKES 9 BIBLIOGRAPHY 11 INTRODUCTION Earthquakes are caused by the movement of the earth’s tectonic plates. Earthquakes occur where the earth’s
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faults lead to be a lot more destruction. Earthquakes are a trembling or shaking of the ground caused by a sudden release of energy stored in rocks beneath earths surface. Earthquakes appear all over the planet‚ and there are many different sizes. Some earthquakes destroy entire cities while others only shake the ground for a moment. Faults are one of the causes of earthquakes‚ which I will tell about soon as well as the hazards and benefits they give. Earthquakes can be caused in many ways‚ some even
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EARTHQUAKES DHORI: Cracks on a salt marsh can be seen on this aerial view of the epicentre of the recent earthquake near Dhori village some 20 km. (12 miles) from Bhuj in the western Indian state of Gujarat‚ Saturday Feb. 3‚ 2001. (AP Photo/Enric Marti) AHMEDABAD: Residents of Ahmedabad‚ India‚ survey earthquake damage Saturday‚ Jan. 27‚ 2001. Officials predicted as many as 6‚000 may have been killed in the 7.9 magnitude earthquake in western India on Friday.(AP Photo/Saurabh Das) The 2001 Gujarat
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Earthquakes An earthquake is a shaking or trembling of the crust of the earth caused by underground volcanic action or by the breaking and shifting of rock beneath the surface. The volcanic action and shifting rocks create strain which continues to build to a sudden release of pressure resulting in a shock wave. The vibrations produced in the crust can vary from barely noticeable to enormously destructive. Shock waves can be classified into two broad categories. Waves that send particles oscillating
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An earthquake (also known as a quake‚ tremor or temblor) is the result of a sudden release of energy in the Earth’s crust that creates seismic waves. The seismicity‚ seismism or seismic activity of an area refers to the frequency‚ type and size of earthquakes experienced over a period of time. Tectonic earthquakes occur anywhere in the earth where there is sufficient stored elastic strain energy to drive fracture propagation along a fault plane. The sides of a fault move past each other smoothly
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Earthquakes are one of the most destructive natural disasters. It is when the stored energy beneath the Earth’s surface is discharged and shakes the ground. The impact of this event is one of the most traumatic ones because it can put long term effects on a large area. They are proven to be unpredictable but once it strikes‚ all in a few seconds‚ cities and towns are completely flattened. Continue on to discover more about this dangerous calamity. Did you ever know that the earth can also move
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EARTHQUAKES o Plates sliding pass each other create friction o Friction builds up creating stress (a force) o Force is greater than plate can withstand‚ budges and breaks‚ creating earthquakes o Release a lot of energy KEY TERMS Seismology- the study of earthquakes and their effects Seismometer/ Seismograph - equipment measuring the amount of ground motion caused by an earthquake ***Let’s do a demo*** Seismogram- record of ground motion produced
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Figure 5.19 The mortar in unreinforced masonry walls such as these in Iran‚1990(A) can easily fail during an earthquake. Oftentimes the entire structure crumbles‚ leaving a pile of rubble in which survive. Shown in(B) is one of the many masonry homes to collapse during the 1988 Armenia earthquake (M6.9)‚ claiming nearly 25‚000 lives. The failure is called soft-story collapse. Soft-story collapse is a common problem in commercial building where the first floor has considerable open space for
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