pure and applied geophysics

, Volume 162, Issue 6–7, pp 1229–1253 | Cite as

The Entropy Score and its Uses in Earthquake Forecasting

  • David Harte
  • David Vere-Jones


Suppose a forecasting scheme associates a probability p* with some observed outcome. The entropy score given to this forecast is then −logp*. This article provides a review of the background to this scoring method, its main properties, and its relationships to concepts such as likelihood, probability gain, and Molchan’s ν-τ diagram. It is shown that, in terms of this score, an intrinsic characterization can be given for the predictability of a given statistical forecasting model. Uses of the score are illustrated by applications to the stress release and ETAS models, electrical signals, and M8.


Entropy score probability forecasts earthquake forecasts 


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Copyright information

© Birkhäuser Verlag, Basel, 2005

Authors and Affiliations

  1. 1.Statistics Research Associates Ltd.WellingtonNew Zealand
  2. 2.Victoria University of WellingtonWellingtonNew Zealand

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