Across
- 2. caused by the sudden movement of materials within the Earth, such as slip along a fault during an earthquake
- 5. an intense shaking of the Earth’s surface that is caused by movements in the Earth’s outermost layer (or the crust).
- 7. One plate is pushed beneath another
Down
- 1. Plates pull apart, causing the crust to crack.
- 3. Stress builds up as plates grind against each other.
- 4. main instrument for detecting and recording seismic waves
- 6. Captures the ground's acceleration during an earthquake, which aids in determining how rapidly the ground speed fluctuates