46. The Mercalli scale is used to measure:
a) The intensity of an earthquake
b) The duration of an earthquake
c) The frequency of an earthquake
d) The magnitude of an earthquake
Answer: a) The intensity of an earthquake
47. Which type of fault occurs when two blocks of rock slide past each other horizontally?
a) Normal fault
b) Reverse fault
c) Strike-slip fault
d) Thrust fault
Answer: c) Strike-slip fault
48. The process of determining the location of an earthquake epicenter is called:
a) Seismic analysis
b) Seismology
c) Seismometry
d) Triangulation
Answer: d) Triangulation
49. The largest earthquake ever recorded had a magnitude of:
a) 9.0
b) 10.0
c) 11.0
d) 12.0
Answer: a) 9.0
50. Which country is most prone to earthquakes?
a) Japan
b) China
c) India
d) United States
Answer: a) Japan
