Source mechanism reconstruction is one of the key features in reservoir characterization. We show that moment tensors in anisotropic media can have significant non double-couple (DC) components. We compare these moment tensors, which describe the stress in the source, with their corresponding potency tensors, which reflect the strain in the source. The potency tensors exhibit much smaller degrees of non double-couple components. Since both tensors describe the same kinematics, these non DC- components are an artifact of the anisotropy of the source medium.

In practice we should therefore rather analyze the potency tensor as it is not influenced by the elastic medium and carries only the information of the kinematic rupture.


Article metrics loading...

Loading full text...

Full text loading...


  1. Aki, K. and Richards, P.G.
    [2002] Quantitative Seismology. University Science Books.
    [Google Scholar]
  2. Baig, A. and Urbancic, T.
    [2010] Microseismic moment tensors: A path to understanding frac growth. The Leading Edge, 320–324.
    [Google Scholar]
  3. Boitz, N., Reshetnikov, A. and Shapiro, S.
    [2018] Visualizing effects of anisotropy on seismic moments and their potency-tensor isotropic equivalent (in press). Geophysics.
    [Google Scholar]
  4. Chapman, C.
    [2004] Fundamentals of Seismic Wave Propagation. Cambridge University Press.
    [Google Scholar]
  5. Menke, W.
    [2012] Geophysical Data Analysis: Discrete Inverse Theory. Academic Press.
    [Google Scholar]
  6. Rice, J.R.
    [1980] The Mechanics of Earthquake Rupture. Elsevier/North Holland, Amsterdam.
    [Google Scholar]
  7. Staněk, F. and Eisner, L.
    [2013] New model explaining inverted source mechanisms of microseismic events induced by hydraulic fracturing. SEG Technical Program Expanded Abstracts, 2201–2205.
    [Google Scholar]
  8. Vavryčuk, V.
    [2015] Moment tensor decomposition revisited. Journal of Seismology, 19, 231–252.
    [Google Scholar]

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error