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EFFECTS OF EARTHQUAKES

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EFFECTS OF EARTHQUAKES
Student Name:
Click on the following links then answer the questions below each link:
http://www.ga.gov.au/hazards/earthquakes/earthquake-basics/causes.html
1.
2.
3.
4.
What causes earthquakes?
Where do most earthquakes occur?
How fast do earthquake waves travel?
What is the difference between the epicentre and the focus?
http://www.geo.mtu.edu/UPSeis/waves.html
5. What is the difference between a P wave and an S wave?
6. Where do surface waves travel?
http://www.ga.gov.au/hazards/earthquakes/earthquake-basics/where.html
7. Why do we have earthquakes in Australia when we are not on the edge of a continental
plate?
http://www.ga.gov.au/hazards/earthquakes/earthquake-basics/historic.html
8. What is the magnitude of Australia’s largest earthquake and where did it occur?
9. Why did this earthquake kill less people than the 1989 Newcastle earthquake?
http://www.ga.gov.au/hazards/earthquakes/earthquake-basics/what.html
10. Complete the table below:
Magnitude
Destruction
< 3.4
3.5 - 4.2 Felt by some people who are indoors
4.3 - 4.8
4.9 - 5.4 Felt by everyone, while dishes break and doors swing
5.5 - 6.1 Causes slight building damage with plaster cracking, and bricks falling
6.2 - 6.9 Causes much building damage and houses move on their foundations
7.0 - 7.3 Causes serious damage with bridges twisting, walls fracturing, and many masonry buildings collapsing
7.4 - 7.9
> 8.0 Causes total damage with waves seen on the ground surface and objects are thrown in the air
Note: events between magnitudes of roughly 2.0 and 3.4 may be felt within a few kilometres of the epicentre.
http://www.iris.edu/seismon/
11. Where are most earthquakes located? Pass your cursor over the latest earthquakes. What
is the largest recent earthquake shown on this map?
http://www.ga.gov.au/hazards/tsunami/tsunami-basics.html
12. What is a tsunami?
13. What causes a tsunami?
14. Where do tsunami’s occur?
http://earthquake.usgs.gov/earthquakes/world/10_largest_world.php
15.
List five of the most severe earthquakes you can find in order of
greatest to least magnitude, and write them in the table below.
Earthquake
location
Date
Magnitude
Dollar Cost
Est.
Damage
Fatalities
1
2
3
4
5
Crack the Code:
Using the code key below, substitute the correct letters to fill in the spaces and complete the
sentences:
1. If a __ __ __ __ __ __ __ is __ __ __ __ __ __, a __ __ __ __ __ __ __ will be issued.
2. You may feel the __ __ __ __ __ __ __ __ __ __ __ before a tsunami arrives.
3. __ __ __ __ __ __ __ comes from two Japanese words which mean __ __ __ __ __ __ __
and __ __ __ __.
4. Some tsunami can __ __ __ up onto__ __ __ __ .
5. Some causes of tsunami include__ __ __ __ __ __ __ __ __ __ __, landslides
and __ __ __ __ __ __ __ __ eruptions.
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