Earth-tremors sentence example

earth-tremors
  • Some of these, which may be called " earth-tremors," resemble earthquakes in the rapidity with which they occur, but differ from earthquakes in being imperceptible (owing to the smallness of the motion) until instrumental means are used to detect them.
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  • Earthquakes and earth-tremors grade into one another, and in almost every earthquake there is some tilting of the surface.
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  • Hecker in his measurement of the variation in the vertical and of tidal earth tremors.
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