Focus and Epicenter / Magnitude and Intensity

1. Which statement is NOT true of Intensity of an earthquake?

• A. Intensity is what humans see and feel.

• B. Intensity scale in number is written in Roman Numeral.

• C. Intensity is the amount of energy released by an earthquake.

• D.Intensity is determined by PHIVOLCS using the Earthquake Intensity Scale (PEIS)

2.What is being measured by the amount of energy released during an earthquake?

• A. Focus

• B. Magnitude

• C. Intensity

• D. Epicenter

3. It refers to the results of the earthquake on people, structures, and also the surroundings.

• A. Energy line

• b. Magnitude

• C. Intensity

• A. D. Epicenter

4. Which of the following statements is NOT true about epicenter?

• A. The epicenter directs where the focus is.

• B. The epicenter of an earthquake is on the Earth’s surface.

• C. The epicenter of an earthquake is above the origin of an earthquake.

• D. The epicenter of an earthquake is where breaking of rocks begins

5. Why is it important to determine the epicenter of an earthquake?

• A. It is important to determine the epicenter of an earthquake because it is the origin of the earthquake.

• B. It is important to determine the epicenter of an earthquake because it is where the breaking of rocks begin.

• C. It is important to determine the epicenter of an earthquake because it is directly beside the origin of the earthquake.

• D. It is important to determine the epicenter of an earthquake because it is the most damage caused by an earthquake is found.