2.2 Questions

1. A landslide or landslip is a geological phenomenon which includes a wide range of ground movement, such as rock falls, deep failure of slopes and shallow debris flows, which can occur in offshore, coastal and onshore environments.
2. Landslides can be triggered by natural causes like heavy rainfall saturating the soil, vibrations from earthquakes or undercutting of banks and cliffs from waves or rivers.
3. Human actions cause almost half of the landslides in Australia. Construction of roads and railways on hillsides along with building works can weaken hillsides and make them more vulnerable during heavy rainfall. Mining activities also contribute to the hazard.
4. The cause of earthquakes in Australia is intra-plate tension where movements occur along cracks and faults in the Earth’s crust, and are measured be the Richter scale 
5. The main causes of earthquakes in Australia is Intra-plate tension where movements occur along cracks and faults in the Earth’s crust 
6. Australia has earthquakes measuring 5.5 on the richtor scaled approxamitly every 15 months, and it doesn’t cause much damage as Australia is on a tectonic plate not next to one.
7. The Newcastle earthquake killed 13 people and injured 120. It also impacted on buildings, with 35 000 homes and 3000 other buildings being moderately to seriously damaged in Newcastle, and a total of 70 000 buildings in the region sustaining minor damage.
8. The difference between a landslide and an earthquake is that a landslide shifts material on top of the ground, where an earthquake shakes the ground from underneath.
9. A Tsunami is a massive wave which is cause by an earthquake which occours under the sea. 
10. An earthquake, landslide or volcano occurs under the sea it can trigger a tsunami.

12. Shake, drop & roar

13.   A 9.3 Richter scale Earthquake off the west coast of Sumatra

14.   There are 23 automated earthquake monitoring stations. It took these stations 20 minutes to pick up the earthquake.

15.   The Tsunami grows taller and wider but slows down dramatically.

16.   The United Nations developed a Tsunami warning system for the Indian Ocean.

17.   Ted Bryant is a Wollongong University geoscience professor that has warned that Tsunami’s caused by New Zealand’s Alpine Fault could strike New South Wales as often as every 500 years.

18.  18. A)  15 degrees North and 90 degrees East

B)
i) 2 hours
ii) 10 hours
iii) 4.5 hours
iv)9 hours

19.We are at Thredbo after just 4 hours ago, a devastating landslide swept everything away that got in the way of it's unmerciful hands. Approximately 3500 tonnes of dirt and derbies came tumbling down the once blemished ski slopes destroying the Bimbadenn and Carinya Lodges, and leaving a death toll of 18 people. This has majorly affected the ski slopes and mountains that Thredbo exploits as its main source of income, as they have been closed due to the landslide and the damages that have been caused.

 20.