In the second half of this interview, Dr. Scott Brandenberg provides a fascinating and detailed overview of his first major research project, which was to study propagation of earthquake ground motions through soft soil layer — from painstakingly building the models, to testing them and then analyzing the results. Among other things, Brandenberg explains why it’s important to measure the sheer strength properly over a wide range of shaking intensities, not just for the really strong ground motions, a finding he says is in parallel with other fundamental profiling studies.