CK12 Earth Science
Figure 7.36: The location of the 2004 Indian Ocean earthquake and the countries that were most affected by the tsunami. ( 31 ) a ...
Figure 7.37: The Boxing Day tsunami strikes a beach in Thailand. ( 40 ) Figure 7.38: A sign indicating a tsunami hazard zone in ...
Lesson Summary During an earthquake, the ground shakes as stored up energy is released from rocks. Nearly all earthquakes occur ...
Further Reading / Supplemental Links http://earthquake.usgs.gov/ http://www.exploratorium.edu/faultline/index.html Vocabulary ...
seismology The study of seismic waves including earthquakes and the earth’s interior. surface waves Surface waves are seismic wa ...
past century, scientists have developed several ways of measuring earthquake intensity. The currently accepted method is the mom ...
waves arrive just after the S-waves. If the earthquake has a shallow focus, the surface waves will be the largest ones recorded. ...
travel through various earth materials. Based on the difference in the arrival times of the first P wave and the first S wave, s ...
Table 7.1: Number Description I Not felt except by a very few under espe- cially favorable conditions. II Felt only by a few per ...
Table 7.1: (continued) Number Description IX Damage considerable in specially designed structures; well-designed frame structure ...
moment magnitude scale is logarithmic. An increase in one integer means that 30 times more energy was released, while two intege ...
Table 7.2: (continued) Location Year Magnitude Africa, Peru (now Chile) 1868 9.0 Cascadia Subduction Zone 1700 9.0 (Data from:Un ...
Figure 7.43: The probabilities of earthquakes striking along various faults in the San Fran- cisco area between 2003 (when the w ...
that a magnitude 6 or greater earthquake would strike the region in 1993. In the mid- 1980s, seismologists with the United State ...
example, about 60 tourists and park employees drowned but few large animals. Three elephants were seen fleeing to higher ground. ...
What are the characteristics of a good earthquake prediction? Why are these features needed? Why were Chinese seismologists so ...
What do you think is the most promising set of clues that scientists might some day be able to use to predict earthquakes? What ...
magnitude 9.5. The 1556 Shaanxi earthquake in China measured a magnitude 8.0, but is estimated to have killed about 830,000 peop ...
Mexico City provides an example of how soft ground can magnify earthquake damage. In 1985, a magnitude 8.1 earthquake struck abo ...
Figure 7.46: A landslide in a neighborhood in Anchorage Alaska after the 1964 Great Alaska earthquake. ( 29 ) Because the earthq ...
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