1. Describe the difference between the focus and the epicenter 2. What is an asp

Question

1. Describe the difference between the focus and the epicenter

2. What is an asperity?

3. Describe the different parts of a wave.

4. Describe the two types of Body Waves.

5. Describe the two types of Surface Waves.

6. Describe the Seismograph.

7. How much more powerful (ground shaking) is a magnitude 5 earthquake compared to a magnitude 4 earthquake?

8. How much more energy does a magnitude 8 earthquake have compared to a magnitude 7 earthquake?

9. What magnitude on the Richter Scale defines a Great Earthquake?

10. What is a nomogram?

11. Describe the Mercalli Intensity Scale.

12. What is a tsunami?

13. What is liquefaction?

14. What is the Humboldt Fault Zone?

15. What is the San Andreas Fault Zone?

16. Where do most Earthquakes occur?

17. Give one example of an intraplate earthquake.

Explanation / Answer

Question 1.
Anwers:Focus:The point of origin of an earthquake within the earth's crust is called the focus.From the focus earthquake waves radiate in all directions.
Epicenter:The point lying vertically above on the earth's surface,directly above the focus,is called the epicenter.In the epicenter the shaking is most intense.The intensity gradually decreases outwards.

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