Earthquakes

4. Measure of the energy released during an earthquake
6. A scale that rates an earthquake's magnitude based on the size of its seismic waves
7. secondary waves,Second to arrive,Transverse waves,Slower,Only travel through solid
9. spot inside Earth where earthquake occurs
11. A scientist who studies earthquakes
13. stress that pushes a mass of rock in opposite directions
14. a device that measures the strength of an earthquake

1. The shaking that results from the movement of rock beneath Earth's surface.
2. Stress that squeezes rock until it folds or breaks
3. waves of energy that travel through the Earth
5. Primary,Compression waves (move side to side),first to arrive,Faster,Travel through solid, liquid and gas
8. Stress that stretches rock so that it becomes thinner in the middle
10. the line recorded on paper by a seismograph, representing ground motion
12. the point on the Earth's surface directly above the focus of an earthquake