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USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards ... One Hundred Years After the 1906 Earthquake ... Shock Waves received recognition as an outstanding documentary at the 2006 Telly Awards and has been nominated for an Emmy...
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earthquake.usgs.gov/regional/nca/1906/shockwaves/
earthquake.usgs.gov/regional/nca/1906/shockwaves/
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earthquake, Shock Waves: The shifting rock in an earthquake causes shock wavescalled seismic wavesto spread through the rock in all directions. In a great earthquake shocks may be felt by people thousands of miles or kilometers away from the center. ... Reducing Earthquake Hazards...
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kids.britannica.com/comptons/article-199869/earthquake
kids.britannica.com/comptons/article-199869/earthquake
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Earthquake shock waves radiate out from the epicenter faster than a bullet! There are slow and powerful surface waves that cause the majority of earthquake damage - Love waves, which move horizontally, and Rayleigh waves, which move vertically.
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library.thinkquest.org/C003603/english/earthquakes/eart...
library.thinkquest.org/C003603/english/earthquakes/earthquakestrength.shtml
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We quickly deduced that all over Shanghai and apparently as far away as Beijing, Thailand and even Pakistan, people who were on the upper floors of tall buildings had felt the shock waves of what we have since learned was an enormous and disastrous earthquake in Sichuan province.
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stlouis.bizjournals.com/stlouis/stories/2008/05/19/edit...
stlouis.bizjournals.com/stlouis/stories/2008/05/19/editorial4.html
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this is the effective centre of the earthquake. Directly above the focus, a second point called the epicentre marks the corresponding point of highest-intensity shock on the surface. Shock waves propagate like ripples from the focus and epicentre, decreasing in intensity as ... Earthquake and Shock Waves ; Seismograph...
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kidsfreesouls.tripod.com/earthqk1.htm
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Associated Press Interactive: A year after China earthquake, emotional shock waves still fresh...
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hosted.ap.org/specials/interactives/_international/chin...
hosted.ap.org/specials/interactives/_international/china_quake_anniversary/index.html?SITE=AP
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Earthquake waves (seismic waves): Earthquake waves are the shock waves created at the focus of an earthquake and sent out in all directions through the earth.
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volweb.utk.edu/Schools/bedford/harrisms/stuearth.htm
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The picture shows shock waves radiating from the epicentre of the massive 6.3 seismic event in the medieval town of L’Aquila. ... The first Envisat data, acquired after the earthquake on 12 April, were made immediately available to the scientists.
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www.dailymail.co.uk/sciencetech/article-1170604/Capturi...
www.dailymail.co.uk/sciencetech/article-1170604/Capturing-quake-Fascinating-satellite-image-reveals-Earth-moved-Italy-tragedy.html
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Following an earthquake, the body waves strike first. The fastest kind are the primary waves, or P-waves. (See animation below.) People often report a sound like a train just before they feel a quake, which is the P-wave moving as an acoustic wave in the air.
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www.pbs.org/wnet/savageearth/earthquakes/index.html
www.pbs.org/wnet/savageearth/earthquakes/index.html
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