Chapter 2

Question 1

Earthquakes are generated by abrupt rock slippages through a mechanism called __________?

Answer 1

Elastic Rebound

Question 2

What theory has etablished that the Earth’s crust is mosaic of plates that are constantly in motion?

Answer 2

Plate Tectonics Theory

Question 3

What causes ruptures in the rocks that confine the lava and gases?

Answer 3

Volcanism

Question 4

he oldest among all the Scales used in measuring the intensity of Earthquake is __________.

Answer 4

Rossi-Forel Scale

Question 5

It is the measure of damage of an earthquake.

Answer 5

Intensity

Question 6

It is a more direct measure of energy because it calculates frictional resistance against the area of fault slippage.

Answer 6

Moment Magnitude

Question 7

This is the new scale used in US for measuring Earthquake’s Intensity.

Answer 7

Modified Mercalli Scale

Question 8

What is the highest Intensity Grade measured in Rossi-Forel Scale?

Answer 8

X or 10

Question 9

The rupture takes place along a plane of weakness - - - namely a ______

Answer 9

Fault

Question 10

The highest grade that can be measured using a MM Scale is _____

Answer 10

12