User Guide SSH

The only data required for Stationary Seismic Hazard  (SSH )application is a catalog containing seismic events ('_catalog.mat' is appended in the filenames contain such catalogs). The User goes to his/hers personal workspace and clicks on a seismic events catalog, that is already uploaded (see section ..... eg data handling).

For using a selected catalog for SSH, the User shall click on the "Actions" tab and then select consecutively, "USE IN APPLICATION" and "Source size distribution function", as shown in figure 1. 

Figure 1.

Once the service has been selected the User is requested to fulfill some fields with parameter values needed for the SSH analysis (figure 2). These parameters are:

Using seismic catalog: A catalog has been already uploaded since the previous step, however, the User has the chance to select a different dataset, either from another episode or the any dataset after performing some processing/ filtering.

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).

In any case the magnitude range (minimum and maximum magnitude assigned in the catalog) is shown in the screen (M range)

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 Y-axis for the plotting.