Since this first quiz was held a few days after the earthquakes and tsunami in Japan the subject was timely.
Earthquakes
1. Within 20,000 approximately how many detectable earthquakes are there in the world each year?
Est. 500,000 detectable earthquakes in the world each year. 100,000 of those can be felt, and 100 of them cause damage
2. What is the zone of earthquakes surrounding the Pacific Ocean called?
The Ring of Fire or Circum-Pacific Belt.
3. What is the measured value of an earthquake called?
The magnitude
4. Within 50 miles, how long is the Wasatch Fault? Extra credit for the exact answer.
240 miles (190-290 allowed)
5. From 1975-1995 there were only four states that did not have any earthquakes. Name them for one point each.
Florida, Iowa, North Dakota, and Wisconsin
6. Name the fault in the Mississippi Valley which had very serious earthquakes in 1811-1812.
New Madrid fault
7. Which U.S. state has the most earthquakes in the average year?
Alaska
8. In what decade was the cause of earthquakes stated correctly in a memoir by British engineer John Michell, where he wrote that earthquakes and the waves of energy that they make are caused by “shifting masses of rock miles below the surface”.
1760s (1760)
9. The earliest recorded evidence of an earthquake, in 1831 BC, was in what country?
China
10. What magnitude was the earthquake in Japan on March 11, 2011?
8.9 or 9.0 depending on the news source
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