Still moving along. Got sidetracked with model generation, which was a big waste of time. Figured out how to animate an impact.
This is the max displacement vector. You can see the fundamental starting to come in, which will be the block pulsing up and down. I'm always fascinated to watch the transients become the fundamentals. All of traditional seismic analysis skips the transients.
ps. 1st few frames are at the last.