  Recent work published by Lindsey et al find evidence for a deep and compact
seismic source for the sunquake associated with the 2011 July 30 M9.3 flare, as
well as seismic emission extending up to 10 mHz. We examine the sunquake
independently, and a possible wavefront is found in the 8 mHz band, though no
wavefront is easily discernible in the 10 mHz band. Additionally, we perform
numerical simulations of seismic excitation modeled with the reported
parameters and changes in the power spectra with increasing depth of the
excitation source are examined. It is found that the peak frequency decreases
for increasing depths, but a shallow minimum is indicated between z=0 and
z=-840 km. Analysis of the suspected wavefront of the M9.3 sunquake finds that
the power spectrum of the reported seismic emission is close to that of
background oscillations, though with a peak frequency noticeably lower than the
background peak. Additionally, it is found that the amplitude of the source
estimated by Lindsey et al is too low to produce the observed wavefront.
