Across
- 4. a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust
- 6. a long high sea wave caused by an earthquake or submarine landslide
- 9. boundary occurs when two tectonic plates move away from each other
- 10. boundary is a place where plates slide sideways past each other
- 12. is a fracture or zone of fractures between two blocks of rock
- 14. is not expected to ever erupt again
- 15. is an opening in the earth's crust through which lava, volcanic ash, and gases escape
Down
- 1. have not erupted for a very long time but may erupt at a future time
- 2. is a channel for conveying water or other fluid
- 3. hot molten or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this
- 5. the point on the earth's surface vertically above the focus of an earthquake
- 7. hot fluid or semifluid material below or within the earth's crust from which lava and other igneous rock is formed on cooling
- 8. waves a wave of energy that travels through the Earth and away from an earthquake in all directions
- 11. zone is a collision between two of Earth's tectonic plates where one plate sinks into the mantle underneath the other plate
- 13. boundary occurs when plates move towards each other and collide
- 16. is the outermost shell of a planet