Global seismic monitoring by the USGS indicates typical background rates of one to two magnitude 6.5 or greater earthquakes per week worldwide, consistent with the market-implied 86 percent likelihood for exactly one event during the May 11–17 window. No large aftershock sequences or unusual clustering along major subduction zones or continental faults has appeared in preliminary data through May 16, keeping probabilities for two or more events low at 15.5 percent. Traders weigh this steady activity against the inherent variability in tectonic release, where isolated deep-focus or strike-slip events can still push the count higher before the period closes. Resolution hinges on final USGS catalog verification of confirmed magnitudes and locations.