Since the publication of this manuscript, readers have noted two errors in our analysis. The first is that we inadvertently stated that the forward looking infrared (FLIR) survey simulations only represented a single FLIR survey. In reality, the analysis assumed two independent FLIR surveys occurred prior to simulated seismic activity occurring. To evaluate the results for a single FLIR survey, readers can simply modify line 41 of the R code ‘jwmg21800-sup-0006-missed.dens.funcAnalysis.R’ to read ‘p2=0’ and re-run the analysis. The second error relates to our calculation of the expected number of dens in the 1002 Area.