Seismic Grpah Crossword

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Across
  1. 4. : a seismic wave that causes particles of rock to move in a back-and-forth direction
  2. 5. : a wave vibrating in the direction of propagation.
  3. 7. : a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action.
  4. 8. : a seismic wave that causes particles of rock to move in a side-to-side direction
Down
  1. 1. : someone who studies the sudden, violent movements of the earth connected with earthquakes
  2. 2. : a wave vibrating at right angles to the direction of its propagation.
  3. 3. : Vibrations that travel the Earth carrying the energy released during an earthquake
  4. 6. : An instrument used to determine an earthquake’s strength and location