(1) In a hypothetical seismically active region, earthquakes have been recorded over an 80-year period. Part of the record is instrumental, but part is not. Combining all available data, it appears that earthquakes have been distributed as follows: Moment Magnitude (Number of Earthquakes): 3-4 (1800) , 4-5 (150) , 5-6 (11) , >6 (1) a. Estimate the Gutenberg-Richter parameter for the region. b. Neglecting earthquakes of magnitude less than 3, compute the probability that an earthquake in the region will have a moment magnitude between 5.5 and 6.5 c. Repeat Part (b) assuming that paleoseismic evidence indicates that the region is not capable of producing earthquakes of moment magnitude greater than 6.5.
(1) In a hypothetical seismically active region, earthquakes have been recorded over an 80-year period. Part of the record is instrumental, but part is not. Combining all available data, it appears that earthquakes have been distributed as follows: Moment Magnitude (Number of Earthquakes): 3-4 (1800) , 4-5 (150) , 5-6 (11) , >6 (1)
a. Estimate the Gutenberg-Richter parameter for the region. b. Neglecting earthquakes of magnitude less than 3, compute the probability that an earthquake in the region will have a moment magnitude between 5.5 and 6.5 c. Repeat Part (b) assuming that paleoseismic evidence indicates that the region is not capable of producing earthquakes of moment magnitude greater than 6.5.
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