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Journal of Seismology

, Volume 18, Issue 4, pp 795–797 | Cite as

Comment on the paper “Normal and shear stress acting on arbitrarily oriented faults, earthquake energy, crustal GPE change, and the coefficient of friction” by P. P. Zhu

  • Yun-Tai Chen
Letter
  • 120 Downloads

In his paper “Normal and shear stress acting on arbitrarily oriented faults, earthquake energy, crustal GPE change, and the coefficient of friction”, Zhu (2013) tried to theoretically solve the calculation of the fundamental parameters in seismology. These parameters include the normal and shear stresses acting on arbitrary oriented faults, the earthquake energy, crustal gravitational potential energy (GPE) change (hereon abbreviation or symbol in parenthesis is that used in Zhu’s paper), and the coefficient of friction. He especially emphasized the importance of gravitational potential energy (GPE) change, and stated that “many geophysicists accepted the idea of partitioning earthquake energy into radiated seismic energy (ER), friction energy (EF), and rupture energy (ERP) without consideration of crustal gravitational potential energy (GPE) change (e.g. Kanamori 2001; Abercrombie et al. 2006; Kanamori and Rivera 2006),” and that “the research on the earthquake energy budget stayed...

Keywords

Seismic Energy Total Change Elastic Strain Energy Total Potential Energy Strain Energy Release 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

Very helpful discussions with Professors Shamita Das and Raul Madagiaga were greatly appreciated. The research was supported by the National Natural Science Foundation of China (No.41090291).

References

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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  1. 1.Institute of GeophysicsChina Earthquake AdministrationBeijingChina

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