plate tectonics

3. disasters that are caused when tectonic plates rub together
7. The zone of the Earth’s upper mantle, where rock is weak and capable of flowing
9. Said of rocks or minerals that solidified from molten or partly molten material.
11. Pertaining to rocks and minerals that have been changed by heat and pressure.
14. A tectonic plate of the Earth's lithosphere has been struck by an earthquake in Chile The quake is believed to be caused by a fault on the surface of the Plateau de la Tungurahua which is part of the South American continent
16. The solid outer portion of the Earth; it includes the crust and uppermost mantle.

1. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
2. In plate tectonics, two plates sliding horizontally past each other is called a strike-slip displacement.
4. An instrument that detects Earth motions.
5. A gravitational seawave is caused by a short-duration, large-scale disturbance of the sea floor usually by strong earthquake.
6. A measure of the strength (energy released) of an earthquake
8. The point on the Earth’s surface that is directly above the focus of an earthquake.
10. A boundary between two plates that are moving apart from each other.
12. A boundary between two tectonic plates that are moving toward each other.
13. cratered mountains that spew lava
15. A fracture or zone of fractures in the Earth along which there has been displacement of the sides relative to one another.