tranquil southeast region of Washington State located in the Cascade Mountains‚ began to tremble with earthquake activity lasting until the afternoon of the 26th of March. This was the first of many warnings to geographers and local authorities of the impending dangerous eruption coming from the normally silent Mount Saint Helens. The richter magnitude range was 2.6-4.2. There were 142 recorded earthquakes over 2.4 in the 24 hours between March 26 and 27th. The volcano began to spew ash at 1236. (Girty
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GUJARAT EARTHQUAKE MORE DESTRUCTIVE THAN THE SAN FRANCISCO EARTHQUAKE? In 1989 an earthquake hit San Francisco‚ on the west coast of USA‚ killing around 63 people. Twelve years later an earthquake hit Gujarat‚ in India. This time it killed approximately 20‚000 people. In this report I will be comparing the two earthquakes‚ giving reasons why the Gujarat earthquake was so much more destructive than the one in San Francisco. An earthquake is a movement or tremor in the earth’s crust. Earthquakes happen
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Loma Prieta Earthquake Story Teller By: Kavita Butani There is a lot that happens around the world we cannot control. We cannot stop earthquakes‚ we cannot prevent droughts‚ and we cannot prevent conflict. Earthquakes and the damages they bring have affected the lives of many people around the world forever. As our community grows so does the danger caused by these quakes also increases by mass. Earthquakes can affect our lives in many ways; this type of natural disaster can upset everything from
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EARTHQUAKE An earthquake (also known as a tremor‚ temblor or seismic activity) is the result of a sudden release of energy in the earth’s crust that creates SEISMIC WAVES. Earthquakes are measured with a seismometer; a device which also records is known as a seismograph. SEISMIC DEFORMATION When an earthquake fault ruptures‚ it causes two types of deformation: static; and dynamic. Static deformation is the permanent displacement of the ground due to the event. The earthquake cycle progresses
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deadliest earthquake in history killed 840‚000 people‚ But many other earthquake have caused the dead of more than 100‚000 people and isn’t unusual‚ even in modern times‚ for an earthquake death toll to reach 20‚000 to 20‚000 people with hundreds of thousands left homeless. There are four factors that affect the casualty rate and economic impact of earthquake: magnitude‚ location‚ quality of construction of building‚ and timing. Magnitude The magnitude‚ or strength‚ of an earthquake is measured
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2010 Haiti Earthquake - Case Study Location A 7.0 magnitude earthquake strikes Haiti on Tuesday‚ 12th of January 2010 at 16.53 local time (21.53 GMT). The earthquake occurred in Port-au-Prince‚ the capital city of Haiti. The focus of the earthquake was 13 km below the surface of the earth. Causes The earthquake was caused by the North American Plate sliding past the Caribbean Plate at a conservative plate margin. Both plates moved in the same direction‚ but on plate moves
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Impact Approximately 57 deaths‚ about $1.1 billion in property damage; caused a partial collapse of the volcano’s flank‚ deposited ash in eleven states and five Canadian provinces. With no immediate precursors‚ a magnitude 5.1 earthquake occurred and was accompanied by a rapid series of events. Mount St. Helens produces small to large explosive eruptions‚ which send varying quantities of ash and tephra into the atmosphere Tephra (rock fragments and particles ejected by a volcanic eruption
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Dear the Society for Earthquake Enthusiasts; I feel as a member of the Society for Earthquake Enthusiasts‚ I need to express my opinion on your ideas to move our headquarters to San Francisco. While I am a lover of California and appreciate California from afar‚ I feel as though we should rethink relocating to California. I feel as though this is the best choice to make due to the fact that the earthquake of 1906 was just only a preview of what the San Andreas Fault can do to San Francisco. Due
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name 4/23/12 Earth Science Earthquake essay Earthquakes are a very dangerous natural disaster‚ if strong enough; they could destroy the best-built buildings. They are caused by a sudden shift in the tectonic plates. Earthquakes can also cause other types of disasters too. They could cause tsunamis or volcanic eruptions. However earthquakes erupt unpredictable and can kill many people unpredictable. Seismometers can detect the strength of the earthquake‚ which then gives a number on the Richter
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Earthquake Prediction Earthquakes are one of the most destructive forces known to mankind. An earthquake can have enough power to destroy an entire city and has the potential to be felt 1000 miles away. An earthquake is a series of vibrations induced in the earth’s crust by the abrupt rupture and rebound of the rocks in which elastic strain has been slowly accumulating. Earthquakes happen along vault lines like the San Andres Fault. A fault plane is the surface of a fault fracture along which the
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