Letter of the day | Strengthening buildings for earthquake safety

THE EDITOR, Madam:

On Monday, October 30, 2023, Jamaica experienced a 5.4 magnitude earthquake as recorded by the United States Geological Survey (USGS) that sent shockwaves through the island. While this magnitude might seem relatively moderate, the impact on buildings revealed significant vulnerabilities, underscoring the importance of structural audits, and retrofitting in the face of hazard vulnerability and risk assessment.

The earthquake, though not catastrophic, resulted in structural damage to a significant number of buildings, especially across the Corporate Area. This damage exposed the need for comprehensive structural audits to be taken seriously in Jamaica. Such audits involve thorough inspections of buildings to evaluate their stability and assess whether they can withstand seismic activity.

In addition, it involves making necessary modifications to existing structures to ensure they can withstand seismic forces. This process includes reinforcing foundations, walls, and roofs, as well as securing non-structural elements like windows and facades.

Retrofitting can significantly reduce the risk of structural damage and the potential loss of life during an earthquake. The results of these audits are invaluable in identifying buildings that require retrofitting and those that may need to be reinforced to meet earthquake resistance standards.

Jamaica, like many other countries located near tectonic plate boundaries, faces a constant risk of earthquakes and other natural disasters. The nation’s vulnerability to seismic events necessitates rigorous hazard vulnerability and risk assessments to determine the likelihood of an earthquake occurrence and its potential impact on human lives and infrastructure. Structural audits are a fundamental component of this risk assessment process.

The earthquake has also served as a wake-up call for both public and private sectors to prioritise structural audits and retrofitting. It is essential for the government to establish stringent building codes that require seismic-resistant construction standards. Furthermore, incentives and support should be provided to encourage property owners to undergo structural audits and retrofit their buildings, especially those in high-risk areas.

Investing in structural audits and retrofitting is an investment in public safety. By identifying vulnerable structures and reinforcing them, Jamaica can mitigate the potential destruction and loss of life that could occur in a more significant seismic event. This approach aligns with global best practices and can serve as a model for other earthquake-prone regions.

The 5.4 magnitude earthquake, while not devastating on a widespread scale, has revealed the vulnerabilities in building structures and underscores the urgency of conducting structural audits and retrofitting. These measures are crucial for hazard vulnerability and risk assessment, ensuring that the island is better prepared to withstand future seismic events.

Prioritising seismic resilience is an investment in the safety and well-being of Jamaica’s residents and its built environment.

JUVELLE TAYLOR