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- Seismic Activity with Front Advance: This is a service dedicated to mining induced Episodes and is directly connected with the Time Dependent Seismic Hazard Service. Figure 1b shows the input that is necessary to perform this visualization:
1. Input files are 'mining front advance' and the corresponding seismic catalog, imported from the AH-Episode database.
2. Chose line date: The User selects the date that the front is in a certain position, either by selecting a date from the available list, or by clicking on a certain line in the 'Front Advance Plot' (right part of Figure 1b.)
3. Select Magnitude Column: The user may click on the small arrow in the respective tab in order to chose among different magnitude scales, in the cases where they are available (e.g. ML, Mw, etc).
4. Mmin: The User now is requested to chose the minimum magnitude (completeness level of the catalog). This can be done in two ways. The first is to type a single magnitude value in the empty box, possibly after he/she has performed an individual analysis (see MCE service). The second is to graphically select the minimum magnitude from the Normal or the Cumulative histograms, which are available after clicking on the respective tabs. In both cases there is option to alter the step of the histogram's bars and to select between linear and logarithmic scale of the Y-axis for the plotting. The magnitude range is also shown in the screen.
Figure 1b.
- Front Advance Histograms Visualizations: This is a service dedicated to mining induced Episodes and is directly connected with the Time Dependent Seismic Hazard Service. It provides histograms of seismic events and seismic energy release for constant steps of mining front advance. The data needed for this services comes from the AH Episodes (see this chapter) and in particular Bobrek Mine seismic catalog and Bobrek mine front advance, as depicted in Figure 2, next to "Using Seismic catalog" and "Using mining front advance", respectively. Any other, previously filtered catalog can be introduced as well. In addition, the front window size is requested to be set by the user (in meters).
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Figure 2.
The results will be demonstrated after clicking on the "Run" button (blue box in Figure 2). An example of the resulting histograms is shown in Figure 3. The energy histogram is similar. Zooming in/out, options for linear/logarithmic scale of the y-axis and interval/cumulative histogram plotting are available for both events and energy charts. The results are also available in numerical format, and can be selected after clicking on the small arrow, indicated by the red circle in Figure 2.
Figure 3.
- Front Advance Visualization:This is a service dedicated to mining induced Episodes and is directly connected with the Time Dependent Seismic Hazard Service. The data needed for this services comes from the AH Episodes (see this chapter) and in particular Bobrek Mine seismic catalog and Bobrek mine front advance, as depicted in Figure 4, next to "Using Seismic catalog" and "Using mining front advance", respectively. Any other, previously filtered catalog can be introduced as well.Additional parameters are requested by the User (Figure 4):
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Figure 4.
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- 5. Margin along front strike: The distance (margin) along the front strike is requested in this field. This distance is equal for both directions of the front strike. Events will be spatially constrained by this margin together with the Distance along the front advance" (see field below).
6. Distance along the front advance
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- : The distance along the front advance is requested in this field. This distance is equal for both sides of the front (i.e. in front of and behind the front). Events will be spatially constrained by this margin together with the "Margin along the front strike" (see field above).
Once all the parameters are set, the User may click on the
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- 'RUN' button (
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- green button, at the bottom of
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- figure 1b), to initiate the visualization process
Figure 1b.
The result is a map similar to the one demonstrated in Figure 1c.
Figure 1c
Figure 5.
Four vectors with output results, corresponding to data extracted are also produced (shown at the left of Figure 5) and they are the front position, the latitudes, longitudes and magnitudes of the events. These vectors are available for further processing and can be used as input for other applications. By clicking on any of them in the list, the values of the vector appear in the screen (for example magnitude "m" as shown in Figure 6). These values can be either plotted as 1-D plot (click on "Show" button, indicated by the green box in Figure 6 - see "Plot Properties" later on this Chapter for details), or used in a variety of applications as demonstrated in Figure 6 (red frames).
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- Front Advance Histograms Visualizations: This is also a service dedicated to mining induced Episodes and is directly connected with the Time Dependent Seismic Hazard Service. It provides histograms of seismic events and seismic energy release for constant steps of mining front advance. The data needed for this services comes from the AH Episodes (see this chapter) and in particular Bobrek Mine seismic catalog and Bobrek mine front advance, as depicted in Figure 2, next to "Using Seismic catalog" and "Using mining front advance", respectively. Any other, previously filtered catalog can be introduced as well. In addition, the front window size is requested to be set by the user (in meters).
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Figure 2.
The results will be demonstrated after clicking on the "Run" button (blue box in Figure 2). An example of the resulting histograms is shown in Figure 3. The energy histogram is similar. Zooming in/out, options for linear/logarithmic scale of the y-axis and interval/cumulative histogram plotting are available for both events and energy charts. The results are also available in numerical format, and can be selected after clicking on the small arrow, indicated by the red circle in Figure 2.
Figure 3.
Figure 6.
- Integrated episode data Visualization: This is an alternative way to access integrated Episode data visualization, already described in "AH Episode Chapter".
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