What I Have Learned
Activity 5: Answer the questions below based on the content discussed.
1. How is a tsunami generated or produced?
2. Why is a tsunami more damaging than tidal waves or wind-surfaced waves?
3. How are tsunamis and earthquakes associated?
4. Describe a tsunami when it is far from the coast.
5. Describe a tsunami when it is near the coast.
6. Give three signs that a tsunami is possibly coming in a coastline.
7. What kind of fault movement will create a tsunami?
8. How strong should an earthquake be, before it can produce a destructive tsunami?
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Answer:
Usually, it takes an earthquake with a Richter magnitude exceeding 7.5 to produce a destructive tsunami. Most tsunamis are generated by shallow, great earthquakes at subductions zones. More than 80% of the world's tsunamis occur in the Pacific along its Ring of Fire subduction zones.