Earth Unit 4 Vocab

5. Type of boundary where plates collide.
8. AW's supercontinent.
9. Once of the features formed by subduction.
12. When the ground acts like a liquid during an earthquake.
13. An example of this boundary is the San Andreas fault in California.
14. Where the damage of an earthquake is the greatest.
15. Types of currents in the mantle that cause plates to move.
18. Using sound to make maps of regions of the ocean floor.
19. Himalayas are these type of mountains.
20. Volcanic eject that can circle the globe and cause temperatures to drop.
21. Where earthquake movement actually begins.
22. Fastest of the seismic waves.
23. Type of seismic waves that do the most damage.

1. Type of boundary where plates are pulling apart.
2. Author of Continental Drift.
3. Series of volcanoes in the ocean formed from the collision of two oceanic plates.
4. When one plate slides under another.
5. Yellowstone is an example of this volcanic formation.
6. The measurement of how much energy is released during an earthquake.
7. Theory that describes how Earth's crust is divided and moving.
10. Tallest of the types of volcanoes. Often have the most violent eruptions.
11. Volcanic mountains formed by the collision of an oceanic plate with a continental plate.
16. Author of Sea-floor Spreading
17. Volcanic mudflow.
18. Largest of the types of volcanoes.