1. What type of tectonic plate boundary worldwide (not just Sumatra) causes eart
ID: 235292 • Letter: 1
Question
1. What type of tectonic plate boundary worldwide (not just Sumatra) causes earthquake-induced tsunami? [Convergent boundary] [Divergent boundary] [Transform boundary] 2. How many magnitude 8 earthquakes does it take to equal the energy release for a magnitude 9 earthquake according to the film? [9] [30] [100] [900] 3. How deep under the earth's surface was this particular earthquake according to the film? [8 km] [30 km] [978 km] [1542 km] 4. The movie spends some time talking about how a tsunami is generated. Listen to the scientists describe this process and choose the best answer from the following below: [The sea floor moves horizontally, which in turn moves the water horizontally, generating the tsunami.] [The sea floor moves vertically, which in turn moves the water vertically, generating the tsunami.] [The earthquake's shockwave goes into the water, which in turn generates the tsunami.] 5. Learning what you have about how tsunami are generated by earthquakes, can the offset (movement) along the San Andreas fault during an earthquake produce a dangerous tsunami directly? (Note: This question is not answered directly in the film) [Yes] [No] 6. The Pacific Tsunami Warning Center was able to alert the east coast of Africa about the incoming tsunami. How many fatalities occurred in Kenya as a result according to the film? [1] [53] [1032] [100,000+] 7. Of the four causes of tsunami mentioned in the film, which produces tsunami more than any other? [Earthquake] [Landslide] [Volcanic Eruption] [Asteroid Impact] 8 Which region of the continental U.S. has a Subduction Zone off its coast, and therefore is under the risk of a similar tsunami that occurred in Sumatra in 2004? [Hawaii] [California] [Pacific Northwest] [Atlantic Seaboard] 9. Which ocean has more chance of a tsunami than any other: (Note: This question is not answered directly in the film) [Indian Ocean] [Arctic Sea] [Atlantic Ocean] [Pacific Ocean]
Explanation / Answer
1)convergent boundaries will cause the most destructive earthquakes and tsunamis
2)an increase in unit of earthquake magnitude will increse its energy by 30 times
3) 30 km a shallow focus earthquake
shallow focus earthquakes are more devastating than deep focus earthquakes
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