APPLICATIONS

Figure 1. Some of the applications available in IS-EPOS Platform.

In general, Applications in IS-EPOS are divided into several categories comprising tools for data handling, data processing, scientific analysis and visualization. Scientific analysis applications sustain advanced methodologies for AH data analysis, whereas data handling and processing applications comprise tools for data transformation, preparation, filtering, format conversion and basic data processing. The current taxonomy of the IS-EPOS Applications is the following. These applications are available after clicking on 'add to workspace' panel (right side of Figure 1).

• Collective properties of seismicity:
  • Anderson-Darling test for exponentiality of Inter-event Time
  • Coefficient of Randomness
  • Priestley-Subba Rao Test
  • Completeness Magnitude Estimation
  • Magnitude Conversion

• Converters:
  • CSV to Catalog converter
  • Catalog to ASCII converter
  • Catalog to Vectors converter
  • Catalog to XLS converter
  • GDF to Vectors converter
  • GDF to XLS converter
  • Ground Motion Parameters Catalog builder
  • Seed converter
  • Time Series builder

• Correlation Analysis:
  • Autocorrelation
  • Cross correlation
• Data Processing Applications
  • Basic Vector Operations
• Download Tools
  • Signal download tool
  • Waveform download tool
• Earthquake Interactions
  • Georesource scale
  • Mainshock scale
  • Earthquake swarm (reshuffling analysis)
  • Time correlated earthquakes (Seasonal trends)
• Event Detection Algorithms
  • Template matching based detection algorithm
• Filtering Tools
  • Catalog Filtering 
• Probabilistic Seismic Hazard Analysis
  • Ground Motion Prediction Equations: Final model analysis
  • Ground Motion Prediction Equations: GMPE calculation
  • Ground Motion Prediction Equations: Residual analysis
  • MERGER: Dynamic risk analysis using a bow-tie approach 
  • Source Size Distribution Functions/ Stationary Hazard
  • Stationary Hazard: Exceedance Probability
  • Stationary Hazard: Maximum Credible Magnitude
  • Stationary Hazard: Mean Return Period
  • Time Dependent Seismic Hazard Parameters in mining front advance
  • Time Dependent Seismic Hazard Parameters in selected area
  • Estimation of source parameters in time-varying production parameters geometry 
• Seismogram Analysis Tool
  • Seed converter
  • Seismogram picking tool
  • Signal download tool
  • Waveform download tool
• Source Parameters Estimation
  • Effective stress drop estimate
  • Moment Tensor Inversion (FOCI)
  • Localization
  • Mechanism: Full moment tensor
  • Mechanism: Shear slip
  • Spectral Analysis
  • Waveform-based seismic event location

• Visualizations
  • Estimate of maximum possible magnitude for reservoir triggered seismicity
  • Fracture network models - Mechanical stresses
  • Front advance histograms
  • Integrated Google Maps data visualization
  • Seismic Activity with Front Advance

Alternatively the user may browse an Episode, upload the data he/she wishes to use for analysis to the personal workspace, and then use these data for visualization, data processing application or data handling application (see figures below).

Step 1:Browse Anthropogenic Hazard Episodes by clicking on "AH Episodes" and select a specific Episode from the list by clicking on one of the panels (e.g. the one indicated by the red box in Figure 2):

Figure 2. Snapshot of the AH Episodes list available in IS-EPOS Platform.

Step 2: Select a data type from the list (e.g. catalog in the example shown in Figure 3). There are several data types available with respect to the episode and the induced seismicity technology:

Figure 3. Data available for a particular episode. 

Step 3: Once the User selects one data type he obtains access to data attributes, numerical values and visualization applications. For further data processing the User has to click on the 'Actions' tab and then on the 'ADD TO WORKSPACE' window which appear right below (red frame at the top of Figure 4):

Figure 4. Available actions for adding a file to the user workspace.

Alternatively, the User may continue from step 2, through the following process:

Step 3b: After selecting an episode the user may receive access to all available data from any episode by clicking on the 'All data related to this episode' tab (Field 4, in the bottom left corner of Figure 5).

Figure 5. Alternative way to add a file to user workspace. 'All data related to this episode' can be used.

Step 3c: A Data search screen is now displayed (See also 'Advanced Data Search' in 'AH Episodes' chapter). The User may either select one or more (even all) episodes, or apply a filter from the list provided such as time range, country, data type etc (Figure 6). All data after the filtering criteria application is now demonstrated and the User may select one or more data types for further processing. If the User chooses the "View File" tab, the same screen as in the previous step, appears. If the User clicks at the 'Add to Workspace' tab (3rd column in the blue panel in Figure 6), the data is directly transferred to his/hers personal workspace. (See also AH Episodes chapter)

Figure 6. Data search functionality and results of the data search. Option to add files to the user workspace is available from this level.

Step 3d: Once the selected data are uploaded at the personal workspace, the User may click on the 'Actions' tab in order to use these data in one of the available applications, grouped into 2 categories: 'USE IN APPLICATION' and  'USE IN VISUALIZATION'. This is the Data Oriented Approach shown in Figure 7.

Figure 7. Possible applications that could be used by the user for a catalog file from Song Tranh Episode.

Alternatively, an Application Oriented Approach can be followed as displayed in Figure 8. The User selects the Application first and then clicks on the 'Change input' tab for choosing (Shown in the red frame of Figure 9) the appropriate input data file(s). 

Figure 8. Application oriented approach to prepare and load the file into the application.