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Geology of Mount Shasta

Figure 27

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seismogram
Figure 27: Seismogram of a small earthquake that occurred as part of a larger swarm beneath Mount Shasta in the fall of 1992. This graphic was made by digitizing a paper record recorded on a seismograph at College of the Siskiyous. Note that 1 cm refers to the scale on the paper record and not necessarily to the amplitude of ground motion.
 

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