Application of the Single Microtremor Method to the Adelaide's Regolith

The single microtremor method has been applied to Adelaide's regolith which exhibits low impedance contrast between the upper and bedrock layers. Preliminary findings show that the predominant fundamental period is between 0.8 and 3.0 seconds. This suggests greatly amplified ground motions for 3 to 5 storey buildings in the Adelaide city due to future seismic events.