1. A landslide is the movement of a mass of rock or sections of the Earth’s crust under the force of gravity.
2. Heavy rainfall, vibrations of Earthquakes and undercutting of banks and cliffs from waves or rivers.
3. The construction of roads or railways on hillsides and mining activities.
4. An earthquake is a violent or sudden shaking of the ground, causing great destruction, as a result of movements within the earth’s crust. They are measured on the Richter scale.
5. Intra-plated tension
6. Every 15 months, and they are too small to be noticed by people and communities.
7. 13 people were killed and thousands of buildings had damage taken to them.
8. Landslides are on the Earth’s crust and earthquakes are under the crust.
9. A tsunami is a really big wave that hits the shore and causes destruction.
10. Sudden shifting of continental plates, earthquake and landslides under the ocean.
11. Continental plates causes earthquake, forcing sea water above to rise, forming waves. Waves move rapidly in deep ocean reaching speeds of 800 kph. Then the waves head inland destroying everything in the path.
12. Shake, Drop and Roar.
13. An underwater earthquake measuring 9.3
14. 23 stations and it took 20 mins.
15. The waves are pushed up out of the ocean by the shallow water making the actual wave.
16. The United Nations responded by coordinating the development of a tsunami warning system for the Indian Ocean.
17. He is a geoscience professor and he provides tsunami warnings that could hit Australia.
18. a. 10°N 110ᵒE
b. i. 2 hours
ii. 9 hours
iii. 5 hours
iv. 9.5 hours
19. On the 30th of July, 1997 a catastrophic landslide occurred in the village of Thredbo. Two ski lodges collapsed and 18 people died. About 3,500 tonnes came down the slope. The Australian Government has spent $40 million to help all of Thredbo out with the rebuilding of the village.
20.
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