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4.4 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 the earthquakes have been distributed as follows: MOMENT MAGNITUDE 3-4 4-5 5-6 > 6 NUMBER OF EARTHQUAKES ~1800 -150 11 1 (a) Estimate the Gutenberg-Richter parameters for the region. (b) Neglecting earthquakes of magnitude less than 3, compute the probability that an earth- quake 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 that 6.5.

4.4 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 the earthquakes have been distributed as follows: MOMENT MAGNITUDE 3-4 4-5 5-6 > 6 NUMBER OF EARTHQUAKES ~1800 -150 11 1 (a) Estimate the Gutenberg-Richter parameters for the region. (b) Neglecting earthquakes of magnitude less than 3, compute the probability that an earth- quake 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 that 6.5.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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4.4 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 the earthquakes have been distributed as follows: MOMENT MAGNITUDE 3-4 4-5 5-6 > 6 NUMBER OF EARTHQUAKES ~1800 -150 11 1 (a) Estimate the Gutenberg-Richter parameters for the region. (b) Neglecting earthquakes of magnitude less than 3, compute the probability that an earth- quake 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 that 6.5.
Transcribed Image Text:4.4 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 the earthquakes have been distributed as follows: MOMENT MAGNITUDE 3-4 4-5 5-6 > 6 NUMBER OF EARTHQUAKES ~1800 -150 11 1 (a) Estimate the Gutenberg-Richter parameters for the region. (b) Neglecting earthquakes of magnitude less than 3, compute the probability that an earth- quake 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 that 6.5.
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