Location of Repository

Applying the Coulomb Failure Function with an optimally oriented plane to the 2008 Mw 7.9 Wenchuan earthquake triggering

By C. Xu, J. Wang, Z. Li and J. Drummond


The Coulomb failure function (CFF) quantitatively describes static stress changes in secondary faults near the source fault of an earthquake. CFF can be employed to monitor how static stress transfers and then shed some light on the probability of successive events occurring around a source fault. In this paper we focus on the CFF and particularly on optimally oriented planes. We present a unified model to determine an optimally oriented plane and its corresponding Coulomb stress, then apply the model to the 2003 Mw 6.6 Bam (Iran) earthquake and the 2008 Mw 7.9 Wenchuan (China) earthquake, thereby checking its effectiveness. Our results show that spatial correlation between positive Coulomb stress changes and aftershocks are, for the 2003 Bam earthquake, 47.06% when elastic Coulomb stress changes are resolved on uniform planes and 87.53% when these are resolved on optimally oriented planes at depth; for the 2008 Wenchuan earthquake the correlations are 45.68% and 58.20%, respectively. It is recommended that account be taken of optimally oriented planes when drawing a Coulomb stress map for analyzing earthquake triggering effects

Topics: QE, GE, GB
Publisher: Elsevier
Year: 2010
OAI identifier: oai:eprints.gla.ac.uk:46156
Provided by: Enlighten

Suggested articles



  1. (2005b), Onto what planes should Coulomb stress perturbations be resolved? doi
  2. (2006). 3-D velocity structure of the 2003 Bam earthquake area (SE Iran): Existence of a low-Poisson's ratio layer and its relation to heavy damage: Tectonophysics, doi
  3. Active tectonics of the Longmen Shan region of the eastern margin of the Tibetan plateau, doi
  4. Bertelloni(2005),Stress changes in the Costa Rica subduction zone due to the 1999 Mw 6.9 Quepos earthquake, doi
  5. Cocco (2005a), Introduction to special section: stress transfer, earthquake triggering and time-dependent seismic hazard, doi
  6. Delayed triggering of the 1999 Hector Mine earthquake by viscoelastic stress transfer, doi
  7. (2000). Did stress triggering cause the large off-fault aftershock of the 25 doi
  8. earthquake risk from co-seismic stress, doi
  9. et al.(1987), New evidence on the state of stress of the San Andreas fault system, doi
  10. (2003). et al.(2004), The
  11. Evolution of stress in Southern California for the past 200 years from coseismic, postseismic and interseismic stress changes, doi
  12. Evolution of the stress field in southern California and triggering of moderate-size earthquakes: A 200-year perspective, doi
  13. (2008). Fault trace and slip
  14. (2003). Fielding et al.(2006), Seismotectonic, rupture process, and earthquake-hazard aspects of the doi
  15. (2005). Forecasting the evolution of seismicity in southern California: Animations built on earthquake stress transfer, doi
  16. (1998). Introduction to special section: Stress triggers, stress shadows, and implication for seismic hazard, doi
  17. (2007). Multi-interferogram method for measuring interseismic deformation: Denali Fault, doi
  18. Pore pressure and poroelasticity effects in Coulomb stress analysis of earthquake interactions, doi
  19. (2003). Post-earthquake ground movements correlated to pore-pressure transients, doi
  20. (2004). Postseismic deformation and stress changes following the 1891 Rann of Kachchh, India earthquake: Was the 2001 Bhuj earthquake a triggered event? doi
  21. (1996). Postseismic rebound in fault step-overs caused by pore fluid flow, doi
  22. (2008). Preliminary result of the May 12,
  23. Present-day kinematics at the India-Asia collision zone, doi
  24. Probabilistic seismic hazard in the San Francisco Bay area based on simplified vicoelastic cycle model of fault interactions, doi
  25. Reasenberg(1995), Influence of static stress changes on earthquake locations in southern doi
  26. (1992). Response of regional seismicity to the static stress change produced by the Loma Prieta earthquake, doi
  27. Response of seismicity to Coulomb stress triggers and shadows of the 1999 doi
  28. Response of the San Andreas fault to the 1983 Coalinga-Nunez earthquakes: an application of interaction-based probailities for Parkfiel, doi
  29. (2006). Seismic constraints and Coulomb stress changes of a blind thrust fault system, 1: Coalinga and Ketteman Hills,
  30. (2006). Seismic constraints and Coulomb stress changes of a blind thrust fault system, 2:
  31. Sensitivity of static stress calculations to the earthquake slip distribution, doi
  32. (1994). Static stress changes and the triggering of earthquakes,
  33. (2006). Stress changes along the Sunda trench following doi
  34. Stress changes from the 2008 Wenchuan earthquake and increased hazard in the Sichuan basin, doi
  35. (2008). Stress interaction effect on the occurrence probability of characteristic earthquakes in Central Apennines, doi
  36. Stress sensitivity of fault seismicity: a comparison between limited-offset oblique and major strike-slip faults, doi
  37. (1981). Stress transfer relations among the earthquake that occurred in Kerman province, Sout hern Iran since doi
  38. (1981). Stress transfer relations among the earthquake that occurred in Kerman province, Southern Iran since doi
  39. Stress transferred by the 1995 Mw=6.9 Kobe, Japan, shock: Effect on aftershocks and future earthquake probabilities, doi
  40. (2003). Strutural constraints on the spatial distribution of aftershocks,
  41. Surface displacements and source parameters of the 2003 Bam(Iran) earthquake from Envisat advanced synthetic aperture radar imagery, doi
  42. (2003). The doi
  43. (2008). The 2000 western Tottori (Japan) earthquake: Triggering of the largest aftershocks and constraints on the slip-weakening distance, doi
  44. (1999). the role of stress transfer in earthquake occurrence,
  45. The static stress change triggering mode: constraints from two southern California aftershock sequences, doi
  46. Three-dimensional deformation caused by the Bam, Iran, earthquake and the origin of shallow slip deficit, doi
  47. (2008). Van der Hilst et al.(2008), A geological and geophysical context for the Wenchuan earthquake doi
  48. (2008). Wenchuan, China, earthquake calculated to increase failure stress and seismicity reate on three major fault systems, doi
  49. Zoback (2007), Assessing elastic Coulomb stress transfer models using seismicity rates in southern California and southwestern doi

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.