The sudden movement or vibration of the earth's crust is called A. earthquake C. liquefaction B fissure D. tsunami 2. This refers to the amount of energy released by an earthquake from its FOCUS. A. epicenter C. magnitude B. Crust D. Intensity 3. The movement of the ground during an earthquake is measured by an instrument called A. earthquakenometer C. Richter scale B. earthquake vane D. seismograph 4. What is the other term of Circumpacific Belt which is an area of weak crustal plates? A. Pacific Ring of Tectonic Plates B. Pacific Weak Crustal Plates C. Pacific Ring of Weak Plates D. Pacific Ring of Fire 5. The following are observed in the environment after an earthquake EXCEPT A dried land C. tsunami B. landslide D. avalanche 6. How do you behave during an earthquake? A. check the safety of family members B. keep calm C. prepare the earthquake emergency plan D. find a safe place to run​