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Geology Animations - Hazards 
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Joined: Sun Mar 18, 2012 10:47 pm
Posts: 5
Post Geology Animations - Hazards
Geology Animations - Hazards

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First: If one find problem in downloading, he can return to this videos.

1-How to dowload from RESTFILE? see this video:

Link: http://www.youtube.com/watch?v=ARAjB79ST3s



2-How to dowload from FILESIN? see this video:
Link: http://www.youtube.com/watch?v=iVEBvzRRGD0

__________________________________________________________________________



1- Orphan Tsunami

Image

This simplified animation illustrates both the subduction-zone processes that lead to a "ghost forest" as well as the evidence that scientists collected to determine that the Pacific Northwest has had many great earthquakes and tsunamis in the past, and will again in the future. This is based on the work of Brian Atwater who published his findings in the book "The Orphan Tsunami of 1700" (USGS Professional Paper 1707).

Size: 19.7 MB

Link:
http://www.restfile.com/48f7gl17c87b/Gh ... t.mov.html

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2- How will 3 buildings, engineered equally, on different bedrock react to an earthquake?

Three buildings of different subsurface react differently to seismic waves. One important geologic factor that affects the level of ground shaking experienced from an earthquake is the presence of solid bedrock versus soft sediment. Soft soils amplify ground shaking. An example from the 1906 San Francisco earthquake and the 1989 Loma Prieta earthquake are included.

2-1 Ampification and liquefaction of buildings on different bedrock[color=#008000][/color]

Image

Highly generalized animation reflects the arrivals of P, S, and surface waves to 3 closely spaced buildings. Exaggerated movement of the buildings reflects the relative motion recorded by the seismograms. The 4th building on the beach shows the effect of liquefaction of underlying sediment. Animation ends with actual seismograms from buildings on solid bedrock and sediment fill equal distance from the 1989 Loma Prieta M7 earthquake. Original music by Jesse Gay, Portland OR.

Size: 5.88 MB

Link:
http://www.restfile.com/mabarb0drmc7/Am ... n.mov.html

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2-2 Liquefaction and sinking building

Image

Cutaway animation of how liquefaction of compacted sediment in the San Francisco area led to the tilting of houses during the 1906 earthquake. Tilted Victorian home at Howard and 17th Streets in the Mission District of San Francisco showing liquefaction-related damage from the 1906 earthquake. This area is underlain by marsh deposits that were covered by artificial fill in the middle to late 1800s. The earthquake shaking caused the artificial fill to liquefy and lose its ability to support the house.(Photograph by G.K. Gilbert of the U.S. Geological Survey; description from USGS).

Size: 3.27 MB
Link:
http://www.restfile.com/f78ijngglnvz/Li ... 6.mov.html

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2-3 Sand Boil Forms during 1989 Loma Prieta earthquake

Image

Sand Boil—sand-laden water can be ejected from a buried liquefied layer and erupt at the surface to form sand volcanoes; the surrounding ground often fractures and settles. Definition & photo from USGS.

Size: 2.47 MB
Link:
http://www.restfile.com/axn5yxfxyne3/Sa ... 4.mov.html

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Sand Blows and the New Madrid Earthquakes of 1811-1812

Size: 272 Ko
Link:
http://www.filesin.com/17B6E218821/download.html

Enjoy.

Thanks.


Sun May 13, 2012 3:22 pm
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