Slip Model
of 14 August 2003 Earthquake

Northwestern of Lefkada Island, Ionian Sea

  A large earthquake of magnitude Mw=6.3 occurred on 14 August 2003 NW of the Lefkada Island
which is situated at the Ionian Sea. The focal mechanism solution revealed strike slip type faulting.
The ruptured fault is almost vertical and has a NE-SW direction.
The inversion of teleseismic waves showed that the earthquake had directivity to Southwest.
The calculated slip model is very complex.

   

   

   

   

   

   

Focal mechanism solutions

Teleseismic modeling

Station Map

Teleseismic Modeling for slip

Slip distribution

Synthetic Shakemap

Focal mechanism solutions


 

Source parameters determination using Teleseismic P,SH,SV waves

 

The teleseismic Stations whose data were used in the inversion
and the focal mechanism of the earthquake


 

Teleseismic Modeling of P and SH waves

 

Slip Distribution


 

Synthetic PGV map


 

Slip model by Agalos A. email: aagalos@geol.uoa.gr
Earthquake modeled by Moshou Alexandra email: amoshou@geol.uoa.gr

References

Agalos A., Papadimitriou P. and Makropoulos K.,2007. Source Parameters Estimation from
Broadband Regional Seismograms for Earthquakes in the Aegean Region and the Gorda Plate.
Proceedings of the 11th International Congress Athens, May 2007

Agalos A., Papadimitriou P., Makropoulos K., 2008. Rupture Histories of Strong Earthquakes. 31st General
Assembly of the European Seismological Commission, held at the Creta Maris
Conference Center, Hersonissos, Crete Greece, Book of Short papers, p 9-16.

Bouchon Michel, 1981. A simple method to calculate Green s functions for elastic layered media.
BSSA, 71, 4, 959-971.

Hartzell S. H., and Heaton T. H., 1983. Inversion of strong ground motion and teleseismic waveform
data for the fault rupture history of the 1979 Imperial Valley, California, earthquake. BSSA, 73, 1553_1583.

Moshou A., Papadimitriou P. and Makropoulos K.,2007. Teleseismic Body Wave Inversion.
Proceedings of the 11th International Congress Athens, May 2007

Moshou A., Papadimitriou P., Makropoulos K., 2008. Waveform Inversion using Teleseismic and
Regional Data for Earthquakes that Occurred in Greece. 31st General Assembly of the European
Seismological Commission, held at the Creta Maris Conference Center, Hersonissos, Crete Greece,
Book of abstracts, p 95.

Wessel, P. and W. H. F. Smith., 1991. Free software helps map and display data, EOS Trans. AGU, 72, 441.