Which of the following statement is WRONG? A. Base isolation has been used in de
ID: 801959 • Letter: W
Question
Which of the following statement is WRONG?
A. Base isolation has been used in designing earthquake resistant building in California
B. Active seismic control systems are more widely used in the US than in Japan
C. US and Japan have different mitigation strategies: US accept damages to buildings and the cost of repairing
D. None of the above
Which of the following statements is WRONG?
A. Plate tectonics provide the force that build mountains and generate earthquakes
B. Earthquake prediction is not possible but an early warning system is possible
C. There are fundamental differences between a magnitude 2 and a magnitude 8 earthquake in the early part of seismograms
Explanation / Answer
1. B. Active seismic control systems are more widely used in the US than in Japan.
because the frequency of mega earthquakes and resulting Tsunami is higher in Japamn and thus they have prepared an early alarm system with more smoothly manner.
2. C
It the early time seismograph, it was no possibe to record an earthquake of manitude 8 or above of it. The magnitude saturation for body wave is about 6 and for surface wave the saturation is at magnitude of 8.
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