Auxiliary Material for
Sensitivity of Coulomb Stress Change to the Parameters of the Coulomb
Failure Model: A Case Study Using the 2008 Mw 7.9 Wenchuan
Earthquake
Jianjun Wang 1,2,3
1
School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan,
430079, China
2
3
Caijun Xu1,2 Jeffrey T. Freymueller3 Zhenhong Li4 Wenbin
Shen1,2
Key Laboratory of Geospace Environment and Geodesy, Ministry of Education,
Wuhan University, 129 Luoyu Road, Wuhan, 430079, China
Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK 99775-7320,
USA
4
COMET+, School of Geographical and Earth Sciences, University of Glasgow,
Glasgow, G128QQ, UK
Journal of Geophysical Research, Solid Earth, 2014
Introduction
These auxiliary materials contain the aftershock distribution of the 2008 Wenchuan
earthquake from Huang et al. [2008] and the slip distributions from the six slip
models developed by Ji and Hayes [2008], Sladen [2008], Li et al. [2008], Shen et al.
[2009], Hashimoto et al. [2010] and Wang et al. [2011] as well as the slip errors of the
two slip models from Hashimoto et al. [2010] and Wang et al. [2011]. All slip models
and their slip errors are projected onto the surface with topography. The slip models
are used for the creation of Coulomb stress change maps. The small red dots in each
subplot denote the cities and counties surrounding the 2008 Mw 7.9 Wenchuan
earthquake.
1. S-Wenchuanrelocatedaftershocks-sup-0002-fs01.pdf (Figure S1) : the
relocated2008 Wenchuan earthquake and aftershocks with magnitudes ranging
from 2 to 6.5 during the time period 2008/05/12–2008/07/08 [Huang et al.,
2008].
2. S-Wenchuanrelocatedaftershocksremoved-sup-0003-fs02.pdf (Figure S2): The
aftershocks after the exclusion of those within 5 km away from the source fault
planes JH08 (panel (a)), SL08 (panel (b)), LI08 (panel (c)), HA10 (panel (d)),
SH09 (panel (e)) and WA11(panel(f)) from the relocated aftershocks above the
completeness. The source fault models JH08, SL08, LI08, HA10, SH09 and
WA11 are from Ji and Hayes [2008], Sladen [2008], Li et al. [2008], Hashimoto
et al. [2010], Shen et al. [2009] and Wang et al. [2011], respectively. The colored
small circles in each panel represent the aftershocks and their corresponding
colors depict their hypocenter depths. The bold back lines represent the projection
of the upper edge of each source fault model onto the surface.
3. S-USGSwenchuanslip-sup-0004-fs03.pdf (Figure S3) : Projection of the slip
distribution of the source fault onto the surface from Ji and Hayes [2008].
4. S-Caltechwenchuanslip-sup-0005-fs04.pdf (Figure S4): Projection of the slip
distribution of the source fault onto the surface from Sladen [2008].
5. S-Liwenchuanslip-sup-0006-fs05.pdf (Figure S5) : Projection of the slip
distribution of the source fault onto the surface from Li et al. [2008].
6. S-Shenwenchuanslip-sup-0007-fs06.pdf (Figure S6) : Projection of the slip
distribution of the source fault onto the surface from Shen et al. [2009].
7. S-Hashimotowenchuanslip-sup-0008-fs07.pdf (Figure S7) : Projection of the
slip distribution of the source fault onto the surface from Hashimoto et al. [2010].
The underlying eight colored rectangles represent the projection of the Beichun
fault and the overlying six colored rectangles represent the projection of the
Penguan fault.
8. S-WangQiwenchuanslip-sup-0009-fs08.pdf (Figure S8) : Projection of the slip
distribution of the source fault onto the surface from Wang et al. [2011].
9. S-HashimotoWangwenchuanslipUncertainty-sup-0010-fs09.pdf (Figure S9):
Projection of the slip errors of the source faults HA10 (left) and WA11 (right)
onto the surface from Hashimoto et al. [2010] and Wang et al. [2011],
respectively.
References
1. Hashimoto, M. B., M. Enomoto, and Y. Fukushima (2010), Coseismic
deformation from the 2008 Wenchuan, China, earthquake derived from
ALOS/PALSAR images, Tectonophys., 491(1-4), 59-71.
2. Huang, Y., J. Wu, T. Zhang, and D. Zhang (2008), Relocation of the M 8.0
Wenchuan earthquake and its aftershock sequence, Sci. China Ser. D-Earth Sci.,
51(12), 1703-1711.
3.
Ji, C., and G. Hayes (2008), Preliminary result of the May 12, 2008 Mw 7.9
earthquake Sichuan, China earthquake,
http://earthquake.usgs.gov/eqcenter/eqinthenews/2008/us2008ryan/finite_fault.ph
p.
4. Li, Z.，E. J. Fielding, T. Wright T, and W. Feng (2008), Fault trace and slip in the
2008 Mw 7.9 Sichuan, China earthquake from InSAR and GPS observations,
AGU Fall Metting 2008 Eos Trans. AGU, 89(53), Fall Meet. Suppl., Abstract
G33C-0714.
5. Shen, Z. K., J. B. Sun, P. Z. Zhang, Y. G. Wan, M. Wang, R. Burgmann, Y. H.
Zeng, W. J. Gan, H. Liao, Q. L. Wang (2009), Slip maxima at fault junctions and
rupturing of barriers during the 2008 Wenchuan earthquake, Nature Geosci., 2,
718-724, doi:10.1038/ngeo636.
6. Sladen, A. (2008),
http://www.tectonics.caltech.edu/slip_history/2008_e_sichuan/e_sichuan.html.
7. Wang,Q., X. J. Qiao, Q. G. Lan, J. Freymueller, S. M. Yang, C. J. Xu, Y. L. Yang,
X. Z. You, K. Tan and G. Chen (2011), Rupture of deep faults in the 2008
Wenchuan earthquake and uplift of the Longmen Shan, Nature Geosc., 4,
634-640, doi:10.1038/ngeo1210.