Direct and indirect methods of detecting subsurface voids and cavities using seismic methods have proven to be a challenge for the better part of a century. There are several examples of resonance associated with shallow voids in the literature, but many of them are individual instances or do not include real data, leaving readers to wonder if it is an exploitable phenomenon that can be used at multiple sites, or if it requires a site-specific set of criteria to be generated. We present three examples of observed resonance that is coincident with the location of known voids at a range of depths to determine if the ringing effect is consistently recorded from one place to another. The data used were not collected specifically for this purpose, but were pulled from data sets acquired over known voids in Utah, Iraq, and Arizona. Additional data from a wider variety of geologic settings and void dimensions would help to determine if observations are consistent across a range of geologic environments and void characteristics.

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