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    • 1. Seismic sea wave caused by deep sea landslide; incorrectly called "tidal wave."
    • 5. Breaking point of rock, which releases seismic energy.
    • 7. Type of seismic wave which travels at a relatively slow speed.
    • 9. Vibration of the earth, produced by the sudden slippage along a fault, releasing energy.
    • 11. The layer of the earth between the crust and the core.
    • 13. Small seismic tremors preceding a large tremor.
    • 17. Name of a scale designed to measure earthquake magnitude.
    • 19. Type of seismic wave which travels fastest.
    • 20. While earthquakes may be measured at the surface, they always occur somewhere - - - - - - the earth.
    • 23. An indication of the destructive effects of an earthquake at a particular place.
    • 24. The rigid outer layer of the earth, including the crust and the outer mantle. 



    • 2. Mass wasting which moves down slope in a fairly coherent manner, along a defined surface.
    • 3. Measurement scale used for classifying the degree of earthquake damage.
    • 4. Large fractures in the earth's crust along which there is movement.
    • 6. Theory whereby rocks along a fault zone behave like springs (2 words).
    • 7. The science of earthquakes.
    • 8. The point at the earth's surface where an earthquake is felt most intensely.
    • 10. Small earthquakes which follow a major tremor.
    • 12. The total amount of energy released during an earthquake.
    • 14. Type of seismic wave which cannot pass through liquids.
    • 15. Mechanically traced record of an earthquake.
    • 16. Elastic energy which, when stored up in rocks along a fault zone, will deform the rock.
    • 18. The outer, relatively thin rock layer of the earth.
    • 21. This type of material causes the speed of all types of earthquake waves to increase.
    • 22. The point within the crust where the earthquake actually occurs.
    Copyright © 1989 by William K. Tong