Earthquake Safety. Earthquake Risk Causes of earthquake damage can include: Shaking Liquefaction...
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- Slide 1
- Earthquake Safety
- Slide 2
- Earthquake Risk
- Slide 3
- Causes of earthquake damage can include: Shaking Liquefaction
Aftershocks Tsunamis
- Slide 4
- Shaking http://youtu.be/FW-TkpvKPl0 Produced by seismic waves -
most violent Kilometers away from the epicenter S Waves (side to
side & up and down motion) Damage: Land slides or avalanches
Destruction to buildings, roads and pipes Shaking depends on type
of rock and soil
- Slide 5
- Aftershocks Small earthquake that occurs after a larger one
Earth settling Can take place hours, days or months later
- Slide 6
- Tsunamis Earthquake Water displaced forms a wave carrying
energy (low height in the ocean) Closer to the beach it begins to
pull water and creates the "wall of water"
- Slide 7
- Liquefaction Shaking turns loose soft soil into liquid mud Soil
must be full of moisture "Quicksand" http://youtu.be/4Uwxr42JqYQ
http://youtu.be/RJCidfj-x9M
- Slide 8
- To reduce earthquake damage, new buildings must be made
stronger and more flexible.
- Slide 9
- Seismic Safe Buildings Base Isolators Tension Ties Cross Ties
Dampers Flexible Pipes
- Slide 10
- Seismic Safe Buildings
http://www.phschool.com/atschool/phsciexp/tech
nology_and_society/cfh-1020_frames.html