Electronic Supplement to
The SDSU Broadband Ground-Motion Generation Module BBtoolbox Version 1.5

by Kim Olsen and Rumi Takedatsu

Table S3. Fixed Parameters for BBtoolbox V1.5

Parameter	Explanation	All Regions
ηs	Scattering coefficient	0.01 km−1
ηi	Absorption coefficient	0.01 km−1
Nscat	Number of scattering wavelets	1500
Iseed	Seed for random number generator	3071
Target matching frequency	Target matching frequency	1–2 Hz (magnitude dependent)
Bandwidth for target matching frequency	Bandwidth for target matching frequency	0.05 Hz

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