A Seismic Hazard Scale (SHS) has been developed to provide a practical seismic hazard assessment tool applicable to mine site personnel. It has- been applied to seismic data sets from numerous Western Australian mines. The SHS is applicable when quantifying seismic hazard on a minewide scale, on a mining block scale, and on a local cluster-by-duster scale. Spatial mapping of variations in seismic hazard is a particularly powerful application of the scale, The SHS is sensitive to temporal increases in seismic hazard. It has also teen shown that the SHS can be applied to estimate seismic hazard when seismic monitoring data are not available. The SHS is a simple derivation of the Gutenberg-Richter relation. There are assumptions and limitations to the SHS that need to be considered when applying it to mine seismicity data.
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