29. An earthquake with magnítude 8.0 releases about the energy of an earthquake

Question

29. An earthquake with magnítude 8.0 releases about the energy of an earthquake with magnitude 4.0. a. twice d. ten thousand tim b. two hundred times c. four hundred times 0. What is a problem with calculating Earthquake recurrence intervals? a. Earthquakes tend to cluster in occurrence and are not evenly spaced over time. b. Humans have only been recording Earthquakes for the last 20,000 years. c. The tectonic plate boundaries keep moving, changing the positions of Earthquakes. d. The hazard maps that are created have too much uncertainty associated with them. Minerals can be both beautiful and useful. These delicate flakes are crystals of wulfenite, an oxide of lead and m as a molybdenum ore.

Explanation / Answer

29) d.Ten thousand times.

30) c. The tectonic plate boundaries keep moving, changing the positions of Earthquakes.

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