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Homework answers / question archive / Carleton University ERTH 2415 Quiz 2: 1)you are in a helicopter following a tsunami
Carleton University
ERTH 2415
Quiz 2:
1)you are in a helicopter following a tsunami. You measure the time between successive waves to be 100s. The frequency of the tsunami is 100s.
a) True b) False
2. Tsunami waves can have a velocity similar to the cruising speed of a jumbo jet a) True
b) False
3. The National Oceanic and Atmospheric Administration (NOAA) is the US agency responsible for monitoring the conditions of oceans, waterways, and the atmosphere. The following webpage is operated by NOAA and tracks tsunamis in the pacific ocean.The website lists Tsunami Messages for All Regions for the past 30 days. Select the HTML announcement for Kilauea Volcano on 14 July 2018 05:12.
An earthquake of a magnitude of 5.2 was observed. A tsunami warning was issued.
a) True b) False
4. Go to the Pacific Tsunami warning centre website. Go to FAQ (left) webpage. The frequency of a major tsunami is 1 every 10 years.
a) True
b) False
5. The department of Public safety operates the Get Prepared” website which provides useful tips to the public on how to prepare for a natural disaster. We wll explore this information. A tsunami can occur in large lakes but with a big warning,
a) True b) False
6. Shield Volcanoes are smaller than lava plateaus
a) True b) False
7. An increase in pressure is the most important mechanism to cause solid rock to melt into magma.
a) True b) False
8. The Cascade Range of volcanoes of Northwestern North America is part of a chain of subduction zone volcanoes.
a) True
b) False
9. Mt. Baker is considered a formant volcano since the ash explosions were in the 1840s.
a) True b) False
10. In the textbook, go to Chapter 6 > (p190). Regarding volcanic causes of death, the top 3 direct causes of deaths are pyroclastic flows, tsunami, and lahar.
a) True
b) False
11. In the textbook, go to Chapter 6 > Section Canada’s Sleeping Volcanoes > Garibaldi Volcano, Southern British Columbia (p181).
Garibaldi volcano is a stratovolcano that has been damaged and rebuilt several times in a succession of violent eruptions..
a) True
b) False
12. The USGS is an agency responsible for providing science on natural hazards in the US. The USGS Volcanic hazards program website provides information on volcano monitoring, news and safety.
Go to the USGS website and navigate to “Prepare” (top right) and “During an Eruption” (left).
If you are near or downwind of a volcano during an eruption, you should not drive unless absolutely necessary.
a) True
b) False
13. In the USGS Volcanic hazards program website, go to “Volcano Updates” “Alert-level system.
Notifications are issued through 10 regional US Volcano observatories.
a) True b) False
14. In the textbook, review the in Greater depth > Volcanic ash: challenge to air traffic safety (p/186).
Ash can melt and later solidify on turbine blades, causing the engine to stall. a) True
b) False
15. In Lake Nyos, Cameroon a successful solution to reduce the CO2 hazard has been installed vertical pipes to bring the CO2 to the surface.
a) True
b) False
16. Go to the Pacific tsunami warning centre website. Go to FAQ and Identify the FALSE statement.
17. Regarding tsunamis and Canada, identify the FALSE statement.
a) The most frequent source of tsunami in BC is from Alaska.
b) The 1929 Grand Banks earthquake event, that triggered the tsunami, caused major damage before the tsunami reached land
c) The 1700 Cascadia earthquake and tsunami is known through oral history and is known to have destroyed a coastal village on Vancouver Island.
d) A tsunami generated from an earthquake in the Cascadia subduction zone would strike within minutes.
18. In the textbook, go to Chapter 7 Tsunamis > Section Wind-caused Waves versus Tsunami Waves (p213). Identify the FALSE statement.
a) Tsunami waves have less momentum than wind-caused waves.
b) In the open ocean, wind-caused waves are generally taller than tsunami waves.
c) Wind-caused waves are different than tsunami waves in that each wave can be considered a solitary unit.
d) A knee high tsunami can kill you
19. You decide you want to observe active volcanic activity. The safest volcano to observe would be located in
20. The above figure was taken at the Kilauea volcano, Hawaii. What type of lava flow is shown in Figure?
21. Regarding viscosity and volcanic eruptions. Identify the FALSE statement.
22. Regarding volcanic materials, identify the FALSE statement:
23. In the textbook, go to Chapter 5 Volcanic Eruptions and Landforms, Section “The Three Vs of Volcanology” (p156).
Table 5.5 and 5.6 realate the magma characteristics and the 3 Vs. Review these tables and the associated text.
Strombolian eruption style is NOT characterized by:
24. In the textbook, go to Chapter 5 Volcanic Eruptions and Landforms, Section “The Three V’s of Volcanology” (p156). Tables 5.5, 5.6, 5.7, 5.8 relate the magma characteristics, 3 V’s, volcanic explosively index (VEI), and frequency/energy release of volcanic eruptions.
Review these tables and the associated text.
For an event with a medium volatile content, identify the FALSE statement.
25. The figure shows a a) Stratovolcnao
b) Caldera
c) shield volcano
d) lava dome
26. Go to the Get Prepared, Government of Canada, website and navigate to “Tsunami” and review the links “What to do”, “Before…” & “During…”. Identify the TRUE statement.
27. Natural Resources Canada (NRC) provides information on volcanic hazards in Canada. Go to the “What are the hazards from volcanoes” link.
Identify the FALSE statement:
28. Go to the “What are the special hazards from volcanic ash?” link. Identify the FALSE statement
29. Go to the “Where are Canada's volcanoes?” link. Identify the FALSE statement:
30. In the USGS Volcano hazards program website. Identify the FALSE statement
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