Recent Development in Seismic Hazard Assessment in Australia

Dr Paul Somerville

Outline of the presentation

• Earthquakes in Australia – more frequent than in most “stable” continents Improved models for describing earthquake occurrence rates in Australia
• New information about active faults in Australia
• New ground motion prediction models including response spectrum
• Effect of shear wave velocity of foundation soil or rock on ground motion level
  • has not been treated rigorously in Australia to date
  • potential for significant changes when properly treated
• Changes in seismic hazard estimates resulting from these new developments
• Case histories
• Future developments and trends

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