THESSALONIKI SEISMIC HAZARD ASSESSMENT: PROBABILISTICAND DETERMINISTIC APPROACH FOR ROCK SITE CONDITIONS

Within the framework of four research projects (RISK-EU, EUROSEISRISK, SRM_LIFE and LESSLOSS) extensive calculations were carried out assessing the seismic hazard in the Thessaloniki and surrounding area. The main results were derived from probabilistic and deterministic approaches taking into account rock site conditions for each examined site in the Metropolitan area of Thessaloniki. The expected strong-ground motions were calculated applying different methodologies. Two different groups worked for the assessment of the seismic hazard, the first one constituted of the INGV (Istituto Nazionale di Geofisica e Vulcanologia, Italy) and LSMF (Laboratory of Soil Mechanics and Foundation Engineering, Thessaloniki, Greece) and the second one of LSMF and ITSAK (Institute of Engineering Seismology and Earthquake Engineering, Thessaloniki, Greece).

[1]  David M. Boore,et al.  Estimation of ground motion at deep-soil sites in eastern North America , 1991, Bulletin of the Seismological Society of America.

[2]  Giovanna Cultrera,et al.  Finite Fault Modeling of Strong Ground Motions Using a Hybrid Deterministic–Stochastic Approach , 2005 .

[3]  E. Papadimitriou,et al.  Thessaloniki–Gerakarou Fault Zone (TGFZ): the western extension of the 1978 Thessaloniki earthquake fault (Northern Greece) and seismic hazard assessment , 2003 .

[4]  B. N. Margaris,et al.  Source Spectral Scaling and Stress Release Estimates Using Strong-Motion Records in Greece , 2002 .

[5]  G. Panza,et al.  Shear velocity structure in the Aegean area obtained by inversion of Rayleigh waves , 2003 .

[6]  David M. Boore,et al.  Site amplifications for generic rock sites , 1997, Bulletin of the Seismological Society of America.

[7]  J. Douglas,et al.  Equations for the Estimation of Strong Ground Motions from Shallow Crustal Earthquakes Using Data from Europe and the Middle East: Horizontal Peak Ground Acceleration and Spectral Acceleration , 2005 .

[8]  E. M. Scordilis,et al.  Empirical Peak Ground-Motion Predictive Relations for Shallow Earthquakes in Greece , 2003 .

[9]  D. Boore.  Stochastic simulation of high-frequency ground motions based on seismological models of the radiated spectra , 1983 .

[10]  S. Stiros,et al.  Geodetic constraints on the fault pattern of the 1978 Thessaloniki (Northern Greece) earthquake (Ms = 6.4) , 2000 .

[11]  David M. Boore,et al.  Determination of Δσ and κ0 from response spectra of large earthquakes in Greece , 1998, Bulletin of the Seismological Society of America.

[12]  G. Nolet,et al.  P and S deep velocity structure of the Hellenic area obtained by robust nonlinear inversion of travel times , 1997 .

[13]  D. Wells,et al.  New empirical relationships among magnitude, rupture length, rupture width, rupture area, and surface displacement , 1994, Bulletin of the Seismological Society of America.

[14]  C. DAVISON,et al.  The Earthquakes in Greece , 1894, Nature.

[15]  W. B. Joyner,et al.  Equations for Estimating Horizontal Response Spectra and Peak Acceleration from Western North American Earthquakes: A Summary of Recent Work , 1997 .

[16]  J. Brune.  Tectonic stress and the spectra of seismic shear waves from earthquakes , 1970 .