Geoscience Australia research has resulted in significant improvements in earthquake hazard analyses for Australia by:
- capturing high-quality Australian earthquake ground-motion data
- developing improved numerical simulation techniques
- developing the first national-scale Australian site-response model.
- the magnitude and frequency content of the earthquake source which is estimated from the recorded seismograms
- how earthquake energy decays as it propagates through the Earth's crust which is modelled using ground-motion prediction equations
- how near-surface regolith (the layer of weathered rock, unconsolidated sediments and/or soils that overlies fresh bedrock) modifies the observed ground motions, as represented by a site-response model.