What is one way that earthquake intensities are determined with seismographs

What is one way that earthquake intensities are determined?

a.with seismographs

b.with satellites

c.with postal questionnaires

d.with accelerometers

e.with seismometers

12.How much more energy does a magnitude 8 earthquake release than a magnitude 6 earthquake?

a.2 times more

b.10 times more

c.30 times more

d.900 times more

e.27,000 times more

13.What did the San Francisco (1906) and Kobe (1995) earthquakes have in common?

a.There were large uncontrolled fires.

b.They were the same size.

c.There were huge tsunamis.

d.Landslides were a major cause of death.

e.They both occurred near subduction zones.

14.Judge the following sentence according to the criteria given below: Seismologists have abandoned Richter magnitudes in favor of moment magnitudes for describing earthquakes BECAUSE Richter magnitudes do not accurately portray the energy released by large earthquakes on faults with great rupture lengths.

a.The assertion and reason are both correct, and the reason is valid.

b.The assertion and reason are both correct, and the reason is invalid.

c.The assertion is correct and the reason is incorrect.

d.The assertion is incorrect and the reason is correct.

e.Both the assertion and the reason are incorrect.

15.Where is the safest place, among those listed below, in the 48 contiguous states with respect to earthquake seismic risk?

a.South Dakota

b.Missouri

c.South Carolina

d.Maine

e.Utah

16.The 2010 earthquake that struck Haiti and killed over 200,000 people occurred along what type of fault?

a.normal fault

b.reverse fault

c.strike-slip fault (left-lateral)

d.strike-slip fault (right-lateral)

e.thrust fault

17.Judge the following sentence according to the criteria given below: The modified Mercalli scale is better than the Richter magnitude scale in comparing earthquakes from widely separated geographical areas BECAUSE seismic intensity is a function of the energy released, construction practices, and local geology.

a.The assertion and the reason are both correct, and the reason is valid.

b.The assertion and the reason are both correct, but the reason is invalid.

c.The assertion is correct, but the reason is incorrect.

d.The assertion is incorrect, but the reason is correct.

e.Both the assertion and the reason are incorrect.

18.Which of the following is NOT considered good seismic design?

a.installing steel reinforcing rods in concrete structures

b.bolting frame houses to the foundation

c.nailing plywood sheeting over a wood frame

d.attaching wall framing to the sill with metal L braces

e.mixing cement with as much sand as possible

19.Which of the following "Five Earthquakes That Make a Point" did NOT occur near a plate boundary?

a.1994 California, U.S.A.

b.2001 Gujarat, India

c.2011 Tohoku-Oki, Japan.

d.2011 Christchurch, New Zealand

e.2004 Sumatra, Indonesia

20.Judge the following sentence according to the criteria given below: The near-term prospect of developing a method of earthquake prediction is dismal BECAUSE the mechanics of earthquake generation are too complicated to predict based on our current state of knowledge.

a.The assertion and the reason are both correct, and the reason is valid.

b.The assertion and the reason are both correct, but the reason is invalid.

c.The assertion is correct, but the reason is incorrect.

d.The assertion is incorrect, but the reason is correct.

e.Both the assertion and the reason are incorrect.