Port Macquarie’s seismic resilience planning addresses the region’s moderate seismicity and complex coastal geology, including unconsolidated alluvial sands and estuarine deposits that can amplify ground motion. Our approach integrates Australian Standard AS 1170.4 to evaluate site-specific hazards, with targeted soil liquefaction analysis identifying saturated loose sediments prone to strength loss during an event. For critical structures, base isolation seismic design decouples the building from ground movement, significantly reducing lateral demands.
This category supports essential infrastructure, healthcare facilities, and multi-storey developments where post-earthquake functionality is non-negotiable. We apply advanced ground response modelling through seismic microzonation to map variable shaking potential across the Hastings River floodplain, informing foundation design and land-use decisions. The outcome is performance-based engineering that protects both life safety and operational continuity in the Mid North Coast’s growing urban centre.