4. This natural phenomenon is caused by sudden movement of plates along the fault.

6. It is the longest mountain range in the Philippines.

7. The tectonic belt where the Mount St. Helen is located.

8. This volcano has the 2nd most destructive and devastating volcanic eruption in the 20th century.

9. The seismologist who invented the scale the measures the size and strength of an earthquake.

10. The tectonic belt that is in between the continents of Europe and Africa.

11. It is a point where the earthquake is most severe in terms of its intensity.

12. This type of volcano has not erupted in a long time but is expected to erupt again in the future.

13. The number of active volcanoes in the Philippines along the Pacific Ring of Fire.

14. This point is usually about 670 km below the surface of the Earth and it is where an Earthquake rupture starts.

15. A volcanologist who invented a scale that measures the intensity of an earthquake.

16. This volcano is one of the most active volcanoes in the Philippines and it is located in Negros Oriental.

17. This landform rises at least 300 m from its surface or surrounding area.

18. This term describes the size and strength of an earthquake.

19. This layer of the Earth is broken into several tectonic plates.

20. The term that describes the effect of an earthquake on people, geologic structures, and man-made structures.