Portugal database Alexandra Carvalho LNEC Lisboa Portugal Alexandra
Portugal database Alexandra Carvalho LNEC, Lisboa, Portugal Alexandra Carvalho
Stochastic methodology applied to the definition of MCE Boore, 1983 (w 2 model) Beresnev & Atkinson, 1998 (Finsin) Motazedian & Atkinson, , 2005 (Exsim) Upper crustal attenuation Geometric attenuation R Inelastic attenuation r O
Stochastic methodology applied to the definition of MCE Boore, 1983 (w 2 model) Beresnev & Atkinson, 1998 (Finsin) Motazedian & Atkinson, , 2005 (Exsim) Upper crustal attenuation Geometric attenuation R Inelastic attenuation r O
Stochastic methodology applied to the definition of MCE Boore, 1983 (w 2 model) Beresnev & Atkinson, 1998 (Finsin) Motazedian & Atkinson, , 2005 (Exsim) Upper crustal attenuation Geometric attenuation R Inelastic attenuation r O
Portugal: Other studies Azores: Our goal: Other studies β k β ρ M 0 ρ D fc D Q(f) Δσ Our goal: k Q(f) M 0 fc Δσ
Data base
1. E-01 1. E-02 1. E-03 10 1. E-04 20 Frequência [Hz] 0 Q(f) 10 20 Frequência [Hz] Correction 1. E-02 1. E+16 3. 23 1. E+14 1. E+12 0. 1 1 10 100 Frequência [Hz] source 1. E-01 Theory 1. E-02 AF [m. s] 1. E-04 1. E-03 0. 1 1 10 100 1. E-04 0. 1 Frequência [Hz] 1 10 1. E-01 100 Frequência [Hz] 1. E-02 Fit Perfil 1 D, Carrilho [2004] Q(f) AF [m. s] 1. E-06 1. E-08 1. E-03 Graphic 0 k Momento [Nm] AF [cm/s] 1. E-01 1. E-04 AF [m. s] Fourier Spectrum displacemnet Fourier Spectrum Acceleration Methodology 1. E-03 1. E-04 0. 1 1 10 Frequência [Hz] 100
Methodology
Regional parameters
12/Fev/2007 – 5. 9 M
12/Fev/2007 - 5, 9 M
12/Fev/2007 – 5. 9 M
PAD 1. 0. Portuguese Accelerometer Database 1969 -2006 [Vilanova et al. , 2009] stations implemented in stiff soil and on ground level 58 records
1. E-01 1. E-02 1. E-03 10 1. E-04 20 Frequência [Hz] 0 Q(f) 10 20 Frequência [Hz] Correction 1. E-02 1. E+16 3. 23 1. E+14 1. E+12 0. 1 1 10 100 Frequência [Hz] source 1. E-01 Theory 1. E-02 AF [m. s] 1. E-04 1. E-03 0. 1 1 10 100 1. E-04 0. 1 Frequência [Hz] 1 10 1. E-01 100 Frequência [Hz] 1. E-02 Fit Perfil 1 D, Carrilho [2004] Q(f) AF [m. s] 1. E-06 1. E-08 1. E-03 Graphic 0 k Momento [Nm] AF [cm/s] 1. E-01 1. E-04 AF [m. s] Fourier Spectrum displacemnet Fourier Spectrum Acceleration Methodology 1. E-03 1. E-04 0. 1 1 10 Frequência [Hz] 100
Stochastic methodology applied to the definition of MCE Upper crustal attenuation Geometric attenuation Inelastic attenuation O data: 21 distances x 8 azimuths x 18 magnitudes x 15 simulations= 45360 spectra
Finite-fault simulations Alexandra Carvalho LNEC, Lisboa, Portugal Alexandra Carvalho
Data base - examples
- Slides: 25