Hello,
I am using semi-empirical approach to generate synthetic ground motion. This approach is a combination of Empirical Greens function and Stochastic Simulation methods. This method doesn't consider any slip value. Do any other models consider slip of the fault? Because this slip is a variable parameter along the fault length. We didn't have any ground motion records at the location where max slip occurred for the 2002 Denali earthquake. Similarly, effect of asperities or boulders has not been included in developing synthetic accelerogram as far as i am concerned.
I think so, I do not know about this specific approach, but in general, the slip was included in the magnitude and the source mechanism, which they are the inputs for the synthetic ground motion approach.
Dear Rayan,
Thank you for your reply. Can you please send some reference papers where the slip is included in the magnitude and source mechanism. Because, the slip parameter varies along the length of the fault. How it is incorporated in the model.
Aerial sources use the slip information for the development of synthetic acceleration time history.
Dear Chenna,
You can bring the fault's slip into account by using the Representation Theory. you can combine Green's Function with the slip on the assumed fault surface, it's elastic constant and the fault orientation to find the needed displacement in any direction on the ground (bear in mind that you may need some rotations if your coordinate system differs from the one assumed in Representation Theory). Then, by differentiating once you can obtain velocity and by differentiating twice you obtain acceleration.
I would recommend Quantitative Seismology by Akki and Richards (https://books.google.com/books/about/Quantitative_Seismology.html?id=sRhawFG5_EcC) for more reading. In there you can find more detailed explanation beside the formulations.
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