In a recent paper in the BSSA, Wcisło et al. (2018) use a swarm of earthquakes in West Bohemia (central Europe) to characterize seismic attenuation within this region. However, although the authors’ linking CO2 degassing within the focal zone to temporal variations of direct‐wave seismic waveforms is very interesting, the adopted approach is problematic and may not warrant such conclusions. The general problem with this approach consists in presenting the observations simplistically and unequivocally as measurements of the seismic Q without fully exploring the validity of this model or alternate interpretations. It is well known that in single‐station...

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