Practice Concept Of Isochrons (24.14.1) - Epicentre - Earthquake Engineering

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6 sample questions

Question 1.
What does an isochron represent?
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Think about how we measure time.
Question 2.
Name one type of seismic wave.
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These waves are important in understanding earthquakes.
3Question 3.
What do isochrons represent?
- Points of equal wave arrival time
- Types of seismic waves
- Locations of earthquakes
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Think about a map showing seismic wave arrival.
4Question 4.
True or False: Isochron maps only provide information on P-waves.
- True
- False
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Consider all types of seismic waves.
Question 5.
Given a travel-time curve indicates that P-waves travel at 5 km/s, and a station recorded arrival in 15 seconds, determine the distance from the epicenter.
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Use the formula to find the distance.
Question 6.
An earthquake's epicenter is located 10 km away. If the S-wave arrival time is 20 seconds, estimate using a travel-time curve that shows S-waves move at 3 km/s whether this is reasonable.
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Compare different velocities of waves.

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