Iterative coupling of standardised earthquake detection & wavelet thresholding to determine simplified earthquake event waveforms (SEEW)

This paper introduces a new method to determine simplified earthquake event waveforms (SEEW) of regional earthquakes from their seismological signals which are heavily plagued with seismic noise. This method iteratively couples a standardised earthquake detection procedure with a wavelet thresholding procedure in order to cut through the seismic noise floor and determine the SEEW. The suggested method is implemented and tested for 3 events from a deep borehole station URZ in the Matata region of New Zealand. These preliminary results show that it is possible to dramatically simplify the earthquake event and hence reveal important underlying dynamical information of the system.