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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2011 Great East Japan Earthquake and tsunami Introduction The 2011 Tōhoku earthquake‚ also known as the Great East Japan Earthquake‚[6][7](Japanese: "Eastern Japan Great Earthquake Disaster" was a magnitude 9.0 (Mw) undersea megathrust earthquake off the coast of Japan that occurred on Friday‚ 11 March 2011 It was the most powerful known earthquake to have hit Japan‚ and one of the five most powerful earthquakes in the world overall since modern record-keeping began in 1900. In addition to loss
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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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The short answer is that earthquakes are caused by faulting‚ a sudden lateral or vertical movement of rock along a rupture (break) surface. Here’s the longer answer: The surface of the Earth is in continuous slow motion. This is plate tectonics--the motion of immense rigid plates at the surface of the Earth in response to flow of rock within the Earth. The plates cover the entire surface of the globe. Since they are all moving they rub against each other in some places (like the San Andreas
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2010 Chile earthquake From Wikipedia‚ the free encyclopedia For other earthquakes in and about Chile during 2010‚ see List of earthquakes in Chile occurring in 2010. 2010 Chile earthquake Epicenter of the 2010 Chile earthquake Date 27 February 2010[1] Origin time 03:34 CST (UTC-03:00) Magnitude 8.8 Mw Depth 35 kilometres (22 mi)[2] or 30.1 kilometres (19 mi)[1] Epicenter 35.909°S 72.733°WCoordinates: 35.909°S 72.733°W[2] or 36.290°S 73.239°W[1] Countries or regions Chile Max. intensity
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THE RISK OF EARTHQUAKES FROM HYDRAULIC FRACTURING IN THE UK – KEY STAKEHOLDERS PERCERPTION 1.0 Background On the 1st April 2011‚ a magnitude 2.3M earthquake was recorded near the town of Blackpool‚ UK and this was followed on the 27th May 2011 by a second seismic occurrence of measuring 1.5 on Richter scale. These two events occurred close to Preese Hall drilling site‚ where Caudrilla Resources was extracting gas from a shale deposit using a new method called Hydraulic Fracturing‚ often referred
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In May 2008‚ a major earthquake hit Sichuan in the south west of China‚ it was estimated that around 69 000 to 80 000 people were killed and buildings collapsed with people in them information from an OCR science booklet‚ a news sheet. In my case study‚ I will be writing about Should we spend more money on predicting for an earthquake than on preparing a town for an earthquake I will do this by discussing different point of views of people if they agree or disagree with the statement above and use
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Alaska Earthquake 1964 Have you ever experienced an earthquake? Perhaps you have felt a small tremor or a large one. Whatever the case‚ you are not alone. Many people have experienced an earthquake at some point in their lives. It is an interesting experience and hard to forget. It can also be frightening as well‚ especially if you are caught off guard. Imagine going about your daily life when all of a sudden the ground starts to shake. Things fall and buildings collapse. What goes on in one ’s
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Managing the earthquake hazard Homework 07/03/15 Mitigation: Modify the event 1. How realistic is the control of the physical earthquake event? Control of the earthquake event itself and physical variables such as the location of the epicentre‚ depth of the focus‚ foundation material ie rock type‚ duration of shaking and time of day is not a realistic form of management. Earthquakes caused by humans on the other hand such as those resulting from dam destruction can be managed by considering
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