Moment tensor solutions are calculated manually by Karagianni Ioanna (ikara@geo.auth.gr)

The Department of Geophysics of the Aristotle University of Thessaloniki determines moment tensors shortly after the occurrence of a strong earthquake in Greece and the surrounding regions.

These solutions are republished to the European Mediterranean Seismological Centre (EMSC).

Used method: Time Domain Seismic Moment Tensor Inversion (Dreger, 2003).
Green’s functions: Calculated by the FKRPROG code (Saikia, 1994).

Used broad band data:
a) Aristotle University of Thessaloniki (AUTH)
b) University of Patras (PSLNET)
c) National Observatory of Athens (NOA)
d) University of Athens (UOA)
e) European Networks (GEOFON, MEDNET)

Solution Quality:
A- Best solution: VR>80%, number of used stations ≥3.
B- Accepted solution: VR>80% but number of used stations <3 or 70%<VR<80%.
C- Not accepted solution: 60%<VR<70%.
D- Not accepted solution: VR<60%.

References
Dreger, D. S., 2003, TDMT_INV: Time Domain Seismic Moment Tensor INVersion, International Handbook of Earthquake and Engineering Seismology, Volume 81B, p 1627.
Saikia, C., 1994. Modified frequency–wave number algorithm for regional seismo-grams using Filon’s quadrature; modelling of Lg waves in eastern North America. Geophys. J. Int. 118, 142–158.