Across
- 3. Location of the 9.1 magnitude tsunami that affected 14 countries on Boxing Day 2004
- 8. Exposure of the ocean floor preceding a tsunami wave hitting land
- 9. Destructive mud flow on slopes of a volcano
- 10. Result of tectonic and/or volcanic activity severe shaking of the ground that can cause mass destruction
- 11. Mass movement mechanism triggered by seismic activity
- 12. Plate boundary where new crust is created
- 13. Discipline of dealing with and avoiding natural and man made catastrophies
- 16. Violent ejection of steam and volcanic material
- 17. Found at a destructive plate boundary where crust sinks into the mantle
- 19. Conservative plate boundary
- 20. Large area prone to volcanic and seismic activity around the Pacific Ocean
- 23. A volcanic hazard consisting of a mixture of hot high density rock and gas
- 25. Precipitation affected by volcanic gases such as sulphur and nitrogen oxides
- 26. Destructive plate boundary
- 28. 300,000 deaths 180,000 homes destroyed and 1.5 million people homeless following a 7.0 magnitude earthquake here in 2010
- 29. Point on the surface directly above the focus of an earthquake
- 30. Rock fragments and material ejected from a volcano
Down
- 1. Sudden swell of high water
- 2. Earthquake resistant structures should not do this
- 4. Lightweight airborne deposit from a volcanic eruption
- 5. Renewable energy source that creates a high risk of radioactive explosions
- 6. Weakness in rock formation often trigger of seismic activity
- 7. Water saturated sediment acting as a fluid when shaken
- 14. Devastation of infrastructure e.g. roads, railways and industry
- 15. Part of the lithosphere which moves in continental drift
- 18. Size of seismic or tectonic hazard
- 21. Seismic activity that occurs preceding an earthquake as stress builds
- 22. Seismic wave propagated by submarine tectonic fault
- 24. Ruptured gas pipes and electricity lines can cause this potential hazard
- 27. Logarithmic scale that measures magnitude of an earthquake