Earthquake Traveltime Calculations for 1-D Earth Models

Evaluates traveltimes and ray paths using predefined Earth (or other planet) models. Includes phase plotting routines. The IASP91 (Kennett and Engdahl, 1991 ) and AK135 (Kennett et al., 1995 ) Earth models are included, and most important arrival phases can be evaluated.


Reference manual

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1.5 by Jake Anderson, 3 years ago

Browse source code at

Authors: Jake Anderson , Jonathan Lees; largely translated from the TTBOX Matlab toolbox by Martin Knapmeyer (

Documentation:   PDF Manual  

GPL license

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See at CRAN