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The W-phase package is an extensive source-inversion tool allowing rapid characterization of the seismic source and is a reliable and straightforward method to resolve first-order attributes of large earthquakes. Main contributors are Zacharie Duputel, Luis Rivera and Hiroo Kanamori.


If you use the W-phase package for your own research please cite the following articles:

  • Z. Duputel, L. Rivera, H. Kanamori, and G. Hayes, 2012. W-phase fast source inversion for moderate to large earhquakes (1990 - 2010), Geophysical Journal International, v. 189, iss. 2, p. 1125-1147.
  • G.P. Hayes, L. Rivera and H. Kanamori, 2009. Source inversion of the W phase: real-time implementation and extension to low magnitudes, Seismol. Res. Let., v. 3, 800-805.
  • H. Kanamori and L. Rivera, 2008. Source inversion of W phase: speeding tsunami warning, Geophys. J. Int., v. 175, 222-238.

Getting the Code

Currently, the W-phase package is hosted as a git repository available at For more details on using Git for W-phase, please refer to this page. If you would like to contribute or if you have any questions/suggestions, please contact us.

Green's function databases

The code is based on a Green's function database. Please contact us if you want to use our database (based on the PREM model) or if you need help to build your own for another Earth model.

Build and Run


The installation is described in the W-phase documentation page.

Running the code

There is a quite complete document in the w-phase documentation and you can also check out the w-phase tutorial page which includes an example of run.

wphase.txt · Last modified: 2017/04/06 11:24 by wphase