Earthquakes

3. An instrument used to detect and record seismic waves.
6. Name given to area around the edges of Pacific ocean which experiences a lot of earthquakes (and volcanoes).
7. During an earthquake, we need to duck and ______.
8. A measure of the strength of an earthquake.
10. While the mechanisms of an earthquake are understood, they still can not be __________.
12. These seismic body waves move in an undulating motion and they're destructive.
13. The point where earthquake rupture or fault movement originates.
14. The point on the Earth's surface directly above the hypocentre of an earthquake.
15. The first fault line which was ever named.

1. What is released when two plates slip against each other.
2. A weak area in the Earth's crust where two plates move relative to each other.
4. One of the segments which make up the Earth's crust.
5. In a seismograph reading, what is measured along the x axis.
7. A neighbouring country to Uruguay which experiences a lot of earthquakes.
9. One of two types of seismic waves.
10. These seismic body waves travel fast but they are typically not destructive.
11. In Greek mythology, it was thought that his rage caused earthquakes.
12. A wave of energy that travels through the Earth as a result of an earthquake.