Across
- 3. a type of wave that an earthquake makes: p-waves
- 4. a person who study's earthquakes
- 7. primary wave
- 8. a wave that an earth quake produces
Down
- 1. a type of wave that an earthquake makes: s-waves
- 2. a distructive natural disaster that shakes the earth
- 5. secondary wave
- 6. a tool used to measure earthquakes