Across
- 4. a seismic body wave that shakes the ground back and forth in the same direction and the opposite direction as the direction the wave is moving
- 5. a wave vibrating in the direction of propagationseismologistseismologist
- 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
- 8. shear or transverse waves, cause points of solid media to move back and forth perpendicular to the direction of propagation; as the wave passes, the medium is sheared first in one direction and then in another
Down
- 1. Earth scientists, specialized in geophysics, who study the genesis and the propagation of seismic waves in geological materials
- 2. a wave vibrating at right angles to the direction of its propagation
- 3. an elastic wave in the earth produced by an earthquake or other means
- 6. an instrument that measures and records details of earthquakes, such as force and duration