Crisis2007

Map data

Enter GIS files, .shp (ArcGIS) formatNot necessary. Only usefull to see where the sources are.

Data of computation sites

Selection list or grid

Title which will be written in output files header

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

Source geometry data

Geographical coordinates of the points defining the source

Type of sourceTurn on/off the source

Option different models of circular faultRayon=f(magnitude)

Viewer

Navigate between sources

Data on spectral ordinatesTotal 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)

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).

Unit of the ground motion amplitudeHas to be consistant with the .ATN file

Seismicity dataNavigate between sources

Select seismicity model: Gutenberg-Richter (areas), Characteristic (fault)

PARAMETERSMinimum magnitudeLambda (activity rate)Beta (slope of the GR)Standard deviation of beta

Maximum magnitude distribution(next page)

Mmax

• Untruncated expected value

• Untruncated standard deviation

• M1• M2

Attenuation data

Enter one or more GMPEs (4 build-in models) or user model

Viewer

Click on these tabs to affect one specific model to one specific zone

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

Example .ATN file

5.00 8.50 141.00 1000.00 30 30.000 0.747 0.00131.580 130.989 130.050 128.573 126.283 ......181.761 180.944 179.647 177.607 174.443 ............0.200 0.751 0.00187.820 186.817 185.235 182.769 178.994 ...........

Minf, Msup, number of M

Rinf, Rsup, number of R, type of R (1 focal, 2 epicentral, 3 Joyner-Boore, 4 rupture distance)

Period 1, standard deviation, truncation

Ground motion amplitude for period 1 (NR columns, NM rows)

Period 2, standard deviation, truncation

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