The Gippsland region in southeastern Australia is characterised by some of the highest seismic activity rates and consequent hazard in Australia. The region is host to 26 identified neotectonic features capable of generating moderate to large surface rupturing (> Moment Magnitude 6) earthquakes. This study uses recently available Vicmap light detection and ranging (lidar) data to improve mapping and documentation of neotectonic features and propose locations for future paleoseismic studies. The Neotectonic Features Database linework has been updated, informing improved estimates of uplift rates and maximum-magnitude earthquakes. Results in this study highlight the need for robust paleoseismic data, and inform the discussion on how probabilistic fault displacement hazard assessments should occur in this region. An improved understanding of the distribution and characteristics of seismogenic faults in this area through field reconnaissance and paleoseismic trenching can inform actions to improve community safety and energy security for the region.
Presented at the 2025 Australian Earthquake Engineering Society (AEES) National Conference