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Crisis2007

Crisis2007. Map data. Enter GIS files, .shp (ArcGIS) format Not necessary. Only usefull to see where the sources are. Data of computation sites. Title which will be written in output files header. Selection list or grid. Give file name for list, or enter coordinates for grid.

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Crisis2007

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  1. Crisis2007

  2. Map data Enter GIS files, .shp (ArcGIS) format Not necessary. Only usefull to see where the sources are.

  3. Data of computation sites Title which will be written in output files header Selection list or grid Give file name for list, or enter coordinates for grid Option to filter out some part of the grid. Once the option start polygon is selected, click on the map to define a polygon

  4. Source geometry data Navigate between sources Type of source Turn on/off the source Geographical coordinates of the points defining the source Option different models of circular fault Rayon=f(magnitude) Viewer

  5. Data on spectral ordinates Total number of spectral ordinates for which hazard computation will be performed. Has to be consistant with the .ATN (or .atn) file which contains the GM model (tables of amplitude for various M and R). Switch between the different periods Actual values of the period (0 sec = PGA) Has to be consistant with the .ATN file Upper and lower limit of the intensity level (the hazard curve will be compute in this range of acceleration) Unit of the ground motion amplitude Has to be consistant with the .ATN file Number of points (between the upper and lower limits of accelaration) for which the the exceedance rates will be computed. (for a large grid of points computation may be long).

  6. Seismicity data Navigate between sources Select seismicity model: Gutenberg-Richter (areas), Characteristic (fault) PARAMETERS Minimum magnitude Lambda (activity rate) Beta (slope of the GR) Standard deviation of beta Maximum magnitude distribution (next page)

  7. Mmax • Untruncated expected value • Untruncated standard deviation • M1 • M2

  8. Attenuation data Click on these tabs to affect one specific model to one specific zone Enter one or more GMPEs (4 build-in models) or user model Viewer

  9. Global parameters Maximum distance of integration (sources located beyond this distance are not taken into account) Parameters related to the triangulation Define the Return Periods of interest (up to 5) Select the distance that will be given in the output file for deaggregation

  10. Example .ATN file Minf, Msup, number of M Rinf, Rsup, number of R, type of R (1 focal, 2 epicentral, 3 Joyner-Boore, 4 rupture distance) 5.00 8.50 14 1.00 1000.00 30 3 0.000 0.747 0.00 131.580 130.989 130.050 128.573 126.283 ...... 181.761 180.944 179.647 177.607 174.443 ..... ... .... 0.200 0.751 0.00 187.820 186.817 185.235 182.769 178.994 .... .... ... Period 1, standard deviation, truncation Ground motion amplitude for period 1 (NR columns, NM rows) Period 2, standard deviation, truncation

  11. Problems • Circular faults • Horizontal faults • Does not integrate over depth • At a given point of the source the depth is constant • Does not take into account variable sigma with magnitude and distance • For a given period sigma is constant

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