Objectives:
To understand the implications of active faulting, surface fault loading process, the interaction of faults, lithospheric processes and wave propagation for the seismic hazard in the region of Athens (Greece).

Two different scales:
At a local scale, the Gulf of Evia.
The relationships among the total deformation, the seismic energy release and the deep structure of a very active area which is the Gulf of Evia, for comparison and possible connection with the Gulf of Corinth.
At a regional scale, the Aegean.
The relationships among the major seismogenic zones, the crustal and mantle structure, and the ground motion.

Impact:
To use the region in Europe with the most rapid deformation and the highest seismicity for seismic hazard mitigation in countries of slower deformation and moderate seismicity.

Local scale, Evia
The study of an active normal fault system.

Tectonics
Map precisely the active faults.
Quantify their displacement both in space and time.

Geodesy
Monitor the rate of deformation with 2 GPS profiles across the Gulf.
Define the distribution of faulting and strain.

Seismology
Maintain the VOLNET and CORNET seismological networks.

Install 2 profiles across the system Gulf of Corinth-Gulf of Evia.
Locate and study the crustal and upper mantle structure.

Modeling
Compare the mechanics of the Evia and Corinth regions.
Understand the dynamics of such system of faults.

Regional scale, Aegea

The implication of seismic sources and the earth structure on the ground motion.
Install a network of 30 broad-band seismometers over the Aegean for a 6-month period to:
Locate shallow and intermediate depth earthquakes and estimate the source characteristics.
Compute the heregeneous velocity structure.
Determine the attenuation laws for ground shaking.
Measure the anisotropy of seismic wave propagation.

Coodrinator

UJFG.LGIT
Laboratoire de Geophysique Interne et Tectonophysique, UJF-CNRS, BP53, F38041 Grenoble Cedex 9, France,
tel: (33) 476828064, Fax: (33) 476828101,
Denis Hatzfeld, e-mail: hatzfeld@obs.ujf-grenoble.fr

Participants

IPGP.DS.SIS
Departement de Sismologie, Institut de Physique du Globe-CNRS, 4 place Jussieu, F75252 Paris Cedex 05, France,
tel: (33) 144274892, fax: (33) 144273894, Helene Lyon-Caen, e-mail: lyoncaen@ipgp.jussieu.fr

UAT.DGG
Department of Geophysics and Geothermy, University of Athens, Panepistimioupolis, Ilissia, GR-15784 Athens, Greece,
tel: (33) 17257630, fax: (30) 17243217,
Kostas Makropoulos, e-mail: kmacrop@atlas.uoa.ariadne-t.gr

UTHESS.GPL
Geophysical Laboratory, Aristotle University, PO Box 352-1, GR-54006 Thessaloniki, Greece,
tel: (30) 31998501, fax: (30) 31998528,
Basil Papazachos, e-mail: basil@lesvos.geo.auth.gr

NTUA.DSO-HGL
Higher Geodesy Laboratory, National Technical University, 9 Heroon Street, Zographos, GR-15780 Athens, Greece,
tel: (30) 1 7773613, fax: (30) 1 7708550,
Georges Veis, e-mail: dempar@central.ntua.gr

UCAM.DES
Bullard laboratory, Madingley Rise, Madingley Road, GB-Cambridge CB3 OEZ, Great Britain,
tel: (44) 1 223337195, fax: (44) 1 223337191,
Keith Priestley, e-mail: keth@esc.cam.ac.uk

Contact ENV4-CT96-0277
Head of Unit: A. Ghazi
Scientific Officier: M. Yeroyanni

European Commission
Directorate General for Science,
Research and Development.
Climatology and Natural Hazards
Rue de la Loi 200, B-1049 Brussels, Belgium
tel: +32 22958512, fax: +32 22963024