Across
- 2. shock,a small earthquake after big one
- 5. tidal waves
- 7. volcanoes that still erupt
- 8. no rain or less rain
Down
- 1. volcanoes that may erupt in the future but has not erupted in years
- 3. volcanoes which stopped erupting
- 4. lava under earth 's surface
- 6. instrument that detects shaking