Across
- 3. vibrations caused by the rupture and sudden movement along a break or crack in Earth's crust
- 4. a type of seismic wave which causes particles in the ground to move in a push-pull motion similar to a spring
- 5. a location inside Earth where rocks first move along a fault and from which seismic waves originate
- 6. molten rock stored below Earth's surface
- 7. tiny particles of pulverized rock and glass
- 9. a location where volcanoes form far from plate boundaries
- 10. an instrument that measures and records ground motion and can be used to determine the distance seismic waves travel
- 12. a small steep-sided volcano that erupts gas-rich, basaltic lava
- 13. a measurement of a liquid's resistance to flow
- 15. magma that erupts onto Earth's surface
- 16. a type of seismic wave that causes particles in the ground to move up and down in a rolling motion
- 17. a type of seismic wave that causes particles to move at right angles to the direction the wave travels
- 18. a large steep-sided volcano that results from explosive eruptions of andesitic and rhyolitic lavas along convergent plate boundaries
Down
- 1. a graphical illustration of seismic waves
- 2. energy that travels as vibrations on and in Earth
- 5. a crack or fracture in Earth's lithosphere along which movement occurs
- 8. scientist that studies earthquakes
- 11. large volcano with gentle slopes of basaltic lavas common along divergent plate boundaries and oceanic hotspots
- 13. a vent in Earth's crust through which molten rock flows
- 14. the location on Earth's surface directly above an earthquake's focus