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3 cards from this section. Quick, good the night before a test.
What does PGA stand for?
Think about measuring ground motion during an earthquake.
What is the primary purpose of GMPEs?
Consider why we need predictions in seismic design.
What is the value of M in the GMPE formula?
What do we measure on the Richter scale?
True or False: The constants in GMPEs are always the same for every earthquake model.
Consider why different regions might need different constants.
Using the following GMPE coefficients: a=0.1, b=0.3, c=0.7, d=1.0, calculate the PGA for a magnitude 7.0 earthquake located 20 km from the site. Consider the importance of site conditions in adjusting your answer.
Apply the base logarithmic equation stepwise.
Given two GMPEs, one for subduction zones and another for intraplate regions, compare and discuss how PGA predictions might differ based on tectonic settings. Use examples from real earthquakes.
Look into the features of past earthquakes in both regions.
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