Older buildings constructed under previous building codes contributed significantly to the damage caused by recent earthquakes in Venezuela [1].

This vulnerability highlights a systemic risk in urban infrastructure, where outdated standards fail to meet modern seismic safety requirements. The failure of these structures increases the likelihood of casualties and total property loss during natural disasters.

Pedro Côrtes, a veteran structural engineer and climate and environment analyst, said that older structures were built under standards that are no longer sufficient [1]. These buildings are more prone to collapse during seismic events because they lack the reinforcements required by current engineering codes [1].

The seismic activity occurred this past Wednesday [1]. The resulting damage has drawn attention to the gap between historical construction methods and the evolving understanding of geological risks in the region.

Engineers said that the disparity in damage between new and old structures is a direct result of the transition to stricter building codes over time [1]. While newer developments incorporate flexible materials and reinforced foundations, older masonry and concrete frames often lack the ductility needed to absorb seismic energy [1].

Pedro Côrtes said the vulnerability of these buildings remains a critical concern for urban planning [1]. The prevalence of these aging structures in densely populated areas suggests that future earthquakes could result in similar or more severe structural failures if retrofitting is not prioritized [1].

“Older structures were constructed under outdated building standards, making them more vulnerable to collapse.”

The disparity in damage between old and new buildings in Venezuela underscores the 'legacy risk' inherent in urban environments. When building codes evolve to meet new safety data, existing structures do not automatically upgrade, creating pockets of high vulnerability. This situation necessitates a shift from simple new-build compliance to aggressive retrofitting programs to prevent catastrophic collapse in aging city centers.