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Earthquakes
This outline of basic information on earthquakes starts with an explanation of an earthquake, including the forces acting on rock, (tension, compression, and shear) and plastic and elastic deformation of rock. Next, the principle of the seismograph, seismometer, and seismogram along with the three types of seismic waves are discussed. Information is then presented to help the student distinguish between the focus and epicenter of an earthquake, describe the world-wide distribution pattern of earthquake activity, and explain the earthquake magnitude (Richter) scale and the Modified Mercalli scale of earthquake intensity. This site also includes an explanation of how the epicenter of an earthquake can be located. There is a discussion of some past earthquakes along with a description of the effects of earthquake activity.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
  • College (13-14)
Type of resource:
  • Text:
    • Ref. material
Subject:
  • Geological Sciences:
    • Geology
    • Geophysics
  • Natural hazards
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
Copyright 2003 Pamela J.W. Gore
DLESE Catalog ID: DLESE-000-000-005-306
Educational standards:
  • National Science Education Standards (NSES):
    • 5-8:
      • Unifying concepts and processes:
        • Change, constancy, and measurement
        • Evidence, models, and explanation
      • B - Physical science:
        • Motion and forces
        • Transfer of energy
      • D - Earth and space science:
        • Structure of the earth system
      • F - Science in personal / social perspectives:
        • Natural hazards
    • 9-12:
      • Unifying concepts and processes:
        • Change, constancy, and measurement
        • Evidence, models, and explanation
      • B - Physical science:
        • Interactions of energy and matter
        • Motions and forces
      • D - Earth and space science:
        • Energy in the earth system
      • F - Science in personal / social perspectives:
        • Natural and human-induced hazards
Resource contact / Creator / Publisher:
Author: Pamela J.W. Gore
Georgia Perimeter College