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EXSIM – Modifications

Modifications to EXSIM code to allow for multiple site amplifications curves and random variation of source parameters Horst Langer, INGV-Catania, Italy Mariano Garcia-Fernandez, IGEO (CSIC,UCM ), Spain. EXSIM – Modifications.

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EXSIM – Modifications

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  1. Modifications to EXSIM code to allow for multiple site amplifications curves and random variation of source parameters Horst Langer, INGV-Catania, Italy Mariano Garcia-Fernandez, IGEO (CSIC,UCM), Spain

  2. EXSIM – Modifications • Two shear wave velocities, one related to the source volume, one used for geometrical spreading • Calculation of Housner Intensity • Magnitude and stress parameter can be varied randomly • Site amplification can be specified for each indivual site (instead of a generic correction valid for all sites in the original version) • Radiation pattern and shear wave velocity can be adjusted for each single site • New Output files *stat.out and *resp.out (report min and max values of simulated GM parameters and Housner Intensity, together with distances and cartesian coordinates of each site. The *resp.out* reports full response spectra)

  3. !Input file for program EXSIM12 !Title EXSIM12 & DMB test !Write acc, psa, husid files for each site? Y !MW, Stress, Mvar, Stress_var (log), flag (0=fmax; 1=kappa), fmax or kappa 6.5 130.0 0.0 0.0 0 15.0 !lat and lon of upper edge of fault 0.0 0.0 !strike,dip, depth of fault 0.0 90.0 3.0 ………………………………………………………………………..

  4. Example for new site amplification file 3 0.9 1.0 ! nfrequencies, corr. beta, radpat 1.0 1.0 ! frequency, amplification 3.12 5.23 ! frequency, amplification 14.77 1.0 ! frequency, amplification 1 1.1 1.0 ! nfrequencies, corr. beta, radpat 1.0 1.0 ! frequency, amplification 1 1.1 1.2 ! nfrequencies, corr. beta, radpat 1. 1.0 ! frequency, amplification

  5. Application of EXSIM for Spain case: Area 3 (SE Spain) Mariano García-Fernández, IGEO (CSIC,UCM), Spain María-José Jiménez, IGEO (CSIC,UCM), Spain

  6. White stars: I-EMS98 ≥ V-VI Red stars: I-EMS98 ≥ VII Grey circles: IGN Catalogue (1048-2012)

  7. Red circles: Calibration events. M3.3-5.2 White triangles: accel. stations. < 100 km

  8. Area 3: Soil characterization in Vega Baja

  9. Area 3: Soil characterization in Lorca

  10. Area 3 Vega Baja 05/02/2012 02/03/2008

  11. Area 3 Lorca 02/02/1999 29/01/2005 06/08/2002

  12. Area 3 Lorca May 2011 series 16:47:25

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