ESM P-S Arrivals Web-Service

The ESM P-S Arrivals Web-Service allows to get the p-wave and s-wave arrival times for a given waveform.

A complete list of supported options and usage examples is available in the query-options webpage.

Feature Notes

• The models implemented for theoretical travel times computation are: esm and ak135. esm model assumes Vp = 5.7 km/s, Vs = 3.2 km/s for depth ≤ 30 km, and Vp= 8 km/s, Vs = 4.5 km/s for depth > 30 km. ak135 (Kennet et al., 1995) is a TauP (Crotwell et al.,1999) model.
• The output is provided in JSON format.

References

• Crotwell, H. P., Owens, T. J., and Ritsema, J. (1999), The TauP Toolkit: Flexible seismic travel-time and ray-path utilities, Seismological Research Letters, 70 (2), 154-160. https://srl.geoscienceworld.org/content/70/2/154.short
• Kennett, B. L. N., Engdahl, E. R., and Buland, R. (1995), Constraints on seismic velocities in the Earth from travel times, Geophysical Journal International, 122 (1), 108-124. https://dx.doi.org/10.1111/j.1365-246X.1995.tb03540.x

 

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Backend Python software used by this web service was originally developed by Puglia R. and Russo E., and it is currently mantained by Russo E. and Felicetta C.