PART III: SUMMATIVE ASSESSMENT
A. Directions: Read the questions and answer by writing the letter of the
correct answer.
1. What is the term that refers to the ground above the focus?
A. epicenter
C. intensity
B. impact
D. magnitude
2. What scale is used to measure an carthquake's magnitude?
A Mercalli Scale
C. Richter Scale
B. Moment Magnitude Scale DB and C
3. What causes carthquakes?
A. explosive materiais
B. landslides
C. super typhoon
D. underground movements of tectonic plates
4. What is earthquake intensity?
A. a mcasure of scismic risk
B. a measure of damage done
C. a measure of energy released
D. a measure of an earthquake focus
5. When does a tsunami occur? When an earthquake
A is strong
C. occurs on land
B is weak
D. occurs on the ocean floor
6. What do we call the area where volcanoes usually fon?
C. subduction zone
A ring of fire
B. subducted plate
D. transform plate
7. When does a volcanic eruption occur?
A. when two plates slide past each other
B. when there is a vertical displacement of seawater
C: when rocks are broken down into pieces or particles
D. when pressure builds up and forces magma up the vent
8. How is lahar formed?
A. when the ash is beated
B. when the rock fragments are cooled
C. when the ash and pyroclasts mix with water
D. when the ash and pyrociants mix with other gases​