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Earthquakes Multiple Choice Test

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Earthquakes

Use your knowledge of Earth science to answer all questions in the data set. You will need your Earth Science reference tables and a calculator to answer some of the questions. Good Luck.

NOTE: If the question contains an image, clicking on it will enlarge it for easier viewing. If there is a "More Info" link after the question, clicking it will display additional content related to the question.

The arrival time of the first earthquake P-wave at a seismograph station was 10:11:20 (hours:minutes:seconds). If the epicenter of the earthquake is 8000 km away, what was the approximate arrival time of the first S-wave from this earthquake?

Which information would have been most useful for locating the earthquake epicenter?

What usually causes tsunamis?

No S-waves arrive directly at seismic station A because

On the map, which location is closest to the epicenter of the earthquake?

Approximately how far away from station Y is the epicenter?

The S-waves from this earthquake that travel toward Earth’s center will

Seismic station Z is 1,700 kilometers from the epicenter. Approximately how long did it take the P-wave to travel to station Z?

Approximately how long did the S-wave take to travel from the epicenter to location A?

At which location is the arrival-time difference between the P-wave and the S-wave greatest?

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