USGS analysis establishes that magnitude 10.0+ earthquakes cannot occur because no fault long enough to generate such energy release—roughly one-third of Earth's circumference—exists on the planet. The instrumental record confirms a maximum of 9.5, reached in the 1960 Valdivia, Chile, megathrust event, with 2025's largest at 8.8 off Kamchatka and only typical M6–M7 activity through mid-2026. Ongoing global seismic networks detect no anomalous strain accumulation or precursors capable of producing an unprecedented rupture in the remaining months before 2027. While measurement uncertainties exist at the extreme high end of the scale, the absence of any plausible mechanism keeps trader consensus near certainty on "No."