This application determines seismic source parameters based on spectral analysis of the P and S waves.
The following files are necessary in order to perform the source location, as shown in Figure 1:
Figure 1.
Figure. 2.
The Spectral Analysis application can be selected from the seed file as shown in Figure 2b:
Figure 2b.
Waveform Processing
The options provided by the waveform viewer are described in Figure 2 (see also "Waveform viewer guide" section within "Visualizations" chapter) : When clicking on one waveform, additional options appear.
Figure 2.
Picking Phase for Waveform Analysis:
The User has to select 'Phase' and 'P' options from the fields 5 and 6 of Figure 2 for the vertical component of a station (**Z channel) and 'Phase' and 'S' options from the fields 5 and 6 of Figure 2 for one of the Horizontal components of a station (**N or **E channel). Then he/she has to pick the starting and ending point that wishes to use in Spectral Analysis (Figure 3).
Figure 3.
The User may repeat the process for additional vertical or horizontal components of other stations. When the picking is over, the User shall click on the 'RUN' tab (green button) to initiate the waveform analysis. Soon the process will terminate and the Spectral Analysis results are available (Figure 4). Graphs are also generated (Figure 5) and can be downloaded in different formats. Similar results are also obtained for the P-Wave analysis.
Figure 4.
Figure 5.