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Earthquake Notes. Elastic Rebound. Elastic Rebound. Fault and Joint. Fault: Joint:. Faults. San Andreas Fault. Focus & Epicenter. Seismograph. Seismograph. Foreshocks & Aftershocks. Earthquake Waves Seismic Waves. Body Waves Primary Wave:

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Presentation Transcript
fault and joint
Fault and Joint
  • Fault:
  • Joint:
earthquake waves seismic waves
Earthquake WavesSeismic Waves
  • Body Waves
    • Primary Wave:
    • Secondary Wave:
seismic waves
Seismic Waves
  • Seismic WavesVideo
  • Recent Seismic Activity

http://quake.usgs.gov/recenteqs/Anim/index.html

earthquake intensity scales
Earthquake Intensity Scales
  • Mercalli:
    • Measures the amount of damage done at each location
earthquake intensity scales1
Earthquake Intensity Scales
  • Richter
    • Measures the amount of energy released at the focus of the earthquake.

Richter TNT for Energy Yield (approximate)

1.0 30 pounds Large Blast at a Construction Site

2.0 1 ton Large Quarry or Mine Blast

3.0 29 tons

4.0 1,000 tons Small Nuclear Weapon

5.0 32,000 tons

6.0 1 million tons

7.0 32 million tons, Largest Thermonuclear Weapon

8.0 1 billion tons San Francisco, CA Quake,

9.0 32 billion tons

10.0 1 trillion tons

12.0 160 trillion tons (Fault Earth in half through center, OR Earth\'s daily receipt of solar energy)

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