Eastern North American areas such as Missouri are at risk of suffering _______________ earthquakes.
Indicate whether this statement is true or false.
Question 2Small earthquakes that precede a large earthquake are referred to as _______________.
Indicate whether this statement is true or false.
Question 3Strain in a fault can be released slowly by _______________ if segments of the fault slip slowly and continuously.
Indicate whether this statement is true or false.
Question 4_______________ refers to the change in rock shape due to stress.
Indicate whether this statement is true or false.
Question 5_______________ faults move rock above the fault up and over rock below with a steep fault surface incline.
Indicate whether this statement is true or false.
Question 6A mud volcano is an effect of ____.
a. blind thrust earthquakes
b. reverse thrust earthquakes
c. liquefaction
d. slips in subsurface bedrock
e. shaking at the border of mountain ranges
Question 7Increased earthquake magnitude above 6.0 would be expected to produce which effect?
a. stronger shaking only
b. increased earthquake duration only
c. increased area of shaking only
d. increased strength, duration, and area of shaking
e. increased duration and area of shaking only
Question 8Which ground material would you expect to produce the most damage as a result of liquefaction?
a. dry clay
b. dry sand
c. wet sand
d. rocky soil
e. exposed bedrock
Question 9Using the Richter magnitude scale, what is the lowest earthquake magnitude where you would expect to encounter significant (but not catastrophic) property damage?
a. 2
b. 4
c. 6
d. 8
e. 9
Quick Reply
