d518e9f0-3c3a-4b23-ba77-2f57e898a4cb urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-10-17T04:33:46 creation ISO 19115 2016 The 2012 Australian Earthquake Hazard Map d518e9f0-3c3a-4b23-ba77-2f57e898a4cb This document presents a new set of earthquake hazard maps for consideration in the next revision of the earthquake loading code AS1170.4 "Structural design actions: Part 4 Earthquake actions in Australia". The earthquake catalogue used here includes events up until 2011. It is a combined version of several catalogues provided by external agencies. This represents the most complete catalogue of earthquakes compiled for Australia. The catalogue is more consistent through conversion of various magnitude measurements into a 'pseudo ML' scale. A systematic logic is used to select preferred magnitude types. Aftershocks, foreshocks and mine blasts have been identified and the declustered catalogue used here is cleaner than any previous Australian catalogue. Earthquake source zones applied in the hazard map use a unique combination of three different layers, which capture seismic characteristics at sub-national, regional and high-activity point scales. The map is one of the first in the world to apply a semi-quantitative measure of Mmax for majority of the source zones in the map. We apply recently developed ground motion prediction equations based on modern methods and data. These equations were used to calculate the ground motion at a range of response spectral accelerations, rather than just calculating the hazard for peak ground acceleration (PGA). A suite of maps is calculated using GA's Earthquake Risk Model (EQRM). The EQRM is open-source, allowing the results to be tested or modified independently. The final 2012 Australian earthquake hazard maps for a range of return periods and response spectral periods are presented herein. {"type": "Polygon", "coordinates": [[[110.0, -45.0], [156.0, -45.0], [156.0, -9.0], [110.0, -9.0], [110.0, -45.0]]]} 110.0 156.0 -45.0 -9.0 Earth Sciences GA Publication Published_External Record WMS earthquakes geohazards hazards seismology web map service Download the data (netCDF) documentDigital Download the data (netCDF) HTML Related Product: View the 2012 Australian Earthquake Hazard Map - Interactive map documentDigital Related Product: View the 2012 Australian Earthquake Hazard Map - Interactive map HTML Link to Web Map Service documentDigital Link to Web Map Service WMS Download the Record (pdf) documentDigital Download the Record (pdf) PDF Download the map (pdf) documentDigital Download the map (pdf) PDF Unnamed resource documentDigital HTML