1d model

The computation of earthquake localizations proposed in the CICO^1d è catalogue has been carried out by means of the Hypoellipse package (J. C. Lahr, 1989), starting from a 1d velocity model (see dotted line on the right and the above table) and - see the station page - the concerning station corrections, estimated with Velest software (E. Kissling, 1995), starting from the data recorded between 2002 and 2006.
You can refer to G. de Luca, M. Cattaneo, G. Monachesi e A. Amato (2009) for further information about the modalities and the checks carried out on the results obtained here.

Tabella 1 - Velocity model estimated with inversion program Velest (Proposed in: De Luca et ali, 2009)

 Velocità  Prof   Vp/Vs
  4.45     0.0    1.86
  6.11     3.7    1.83
  6.25     9.3    1.81
  6.32     13.0   1.82
  6.42     16.8   1.81
  6.48     21.9   1.79
  7.07     27.0   1.74
  7.67     33.6   1.70

Download Hypoellipse control card.