M6.1 earthquake - 106 km WNW of Mantua, Cuba

Impact verdict

Low impact. Authoritative USGS parameters (GREEN PAGER, max MMI 4.8, zero secondary-hazard exposure, no tsunami) constrain damaging ground motion at the epicentre and across felt regions. Felt reports and precautionary Florida tourism shutdowns reflect very long-distance perceptibility, not damaging shaking. No ground-truth damage or casualty reports have been confirmed in any source. Western Cuba is a thin London market insurance concentration, so even unconfirmed localised damage in Pinar del Río would not move a London market loss; Florida exposures saw only precautionary operational disruption. The mainstream 'strongest in nearly 150 years' framing is not corroborated by USGS material and is not relied upon for materiality.