Simultaneous seismic wave clustering and registration

In this paper we introduce a simple procedure to identify clusters of multivariate waveforms based on a simultaneous assignation and alignment procedure. This approach is aimed at the identification of clusters of earthquakes, assuming that similarities between seismic events with respect to hypocentral parameters and focal mechanism correspond to similarities between waveforms of events. Therefore we define a distance measure between seismic curves in Rdd≥1, in order to interpret and better understand the main features of the generating seismic process.

► A procedure to identify clusters of multivariate waveforms is defined. ► Simultaneous assignation and alignment is carried out. ► Similar earthquakes with respect to hypocentral parameters and focal mechanism correspond to similar waveforms. ► Multiplets with very high mean correlation are identified.