Earthquake Intensity and magnitude

Intensity is to Damage while Magnitude is to _________________

• Wave

• Amplitude

• Energy

• . Force

Tags

NGSS.HS-PS4-1

Which of the following measures of an earthquake will decrease when observed farther from the epicenter?

• Intensity

• Magnitude

• Depth of the focus

• Location of the epicenter

What happens to the magnitude and intensity as measured farther from the epicenter?

• Magnitude increases while intensity decreases

• Magnitude decreases while intensity increases

• Magnitude increases while intensity remains constant

• Magnitude remains constant while intensity decreases

Is intensity 2 and magnitude 2 of an earthquake the same? Why?

• No, because intensity is a measure of an earthquake in terms of energy while magnitude is a measure of the damaged caused by an earthquake.

• No, because intensity is a measure of the severity of damaged caused by an earthquake while magnitude is a measure of energy released.

• Yes, because both intensity 2 and magnitude 2 are considered weak vibration of the ground and can hardly felt by people.

• Yes, because both have equal quantity thus, they can be interpreted similarly.

Which of the following statements are TRUE?

I. Magnitude is a measure of seismic energy while intensity is a measure of damage.

II. Magnitude decreases with increasing distance while intensity remain constant.

III. Magnitude can be measured by an instrument while intensity is by observation.

• a. I and II only

• II and III only

• . I and III only

• I, II and III