1. The largest recorded earthquake in the United States was what magnitude that struck Prince William Sound, Alaska on Good Friday, March 28, 1964?
7.3 8.1 9.2 9.8
2. The average rate of motion across the San Andreas Fault Zone during the past 3 million years is 56 mm/yr (2 in/yr). This is about the same rate at which your fingernails grow. Assuming this rate continues, scientists project that Los Angeles and San Francisco will be adjacent to one another in approximately how many years?
1 thousand 1 million 10 million 15 million
3. The location beneath the earth's surface where the rupture of the fault begins is called the?
hypocenter epicenter intensity magnitude
4. The location directly above the hypocenter on the surface of the earth is called the?
magnitude intensity epicenter hypocenter
5. It is estimated that there are how many detectable earthquakes in the world each year?
30,000 500,000 850,000 1,000,000
6. Each year the southern California area has about how many earthquakes?
1,000 10,000 100,000 150,000
7. The measure of the shaking created by the earthquake is called?
magnitude epicenter hypocenter intensity
8. The measured value of the earthquake size is called?
9. The San Andreas fault system is more that how miles long?
800 1,000 1,500 2,200
10. Two states that have the smallest number of earthquakes in the United States are?
Maine and New Hampshire New York and Pennsylvania Michigan and Montana Florida and North Dakota
11. The National Earthquake Information Center reports how many earthquakes yearly in the United States?
3,000 to 6,000 6,000 to 9,000 12,000 to 14,000 20,000 to 22,000
12. The Richter Scale is used to measure the?
13. The most earthquake prone zone in the world is?
China Chile Iraq Alaska
14. Some 80 percent of all the planet's earthquakes occur along the rim of the?
Indian Ocean Pacific Ocean Great Lakes Atlantic Ocean
15. There is about 1 earthquake every how many seconds?
5 10 30 60
16. The first "pendulum seismoscope" to measure the shaking of the ground during an earthquake was developed in?
1651 1751 1851 1951
17. The world's deadliest recorded earthquake occurred in 1556 in?
China Chili Alaska Iran
18. What year did the great San Francisco earthquake occur?
1806 1851 1875 1906
19. What is the range of the Richter scale?
1 to 10 1 to 100 1 to 1,000 1 to 10,000
20. Which layer do earthquakes occur in?
Tropospher Lithosphere Asthenosphere Mesosphere
