Across
- 2. the area on Earth's surface directly over the point where the earthquake started (week 21)
- 5. the paper or digital recording of the ground shaking at the specific location of the instrument.
- 9. Slower earthquake waves that move in an up-down motion 90 degrees to the travel of the wave.
- 11. The fastest earthquake waves that move in a push-pull motion.
- 12. Volcanoes not near plate boundaries where a current of hot magma rises from far below.
- 13. The slowest earthquake waves that move in a rolling motion
- 14. Periodic back and forth motion of Earth materials due to an earthquake.
Down
- 1. A measure of how powerful the vibrations were during an earthquake
- 3. Tiny particles of pulverized volcanic rock and glass.
- 4. the process in which the hotter, less dense parts of a gas or liquid rise to the top and the cooler, denser parts sink (week 21)
- 6. an instrument that detects ground noises and shaking such as caused by quakes, volcanic eruptions, and explosions.
- 7. the size of an earthquake, measured on a scale of 1 to 10 (week 21)
- 8. consisting of fragments of rock and ash that are erupted by a volcano (pyro = fire, clastic = piece of rock)(week 21)
- 10. A liquid's resistance to flow. High viscosity is thick, while low viscosity is runny.