HR: 0800h
AN: S11A-0273    [Abstracts]
TI: Contribution of Seismology to the Protection of the Cultural Heritage of Greece
AU: Makropoulos, K
EM: kmarop@geol.uoa.gr
AF: Department of Geophysics, University of Athens, Faculty of Geology and Geoenvironment, Panepistimiopolis, Zografou, Athens, 15784, Greece
AU: * Voulgaris, N
EM: voulgaris@geol.uoa.gr
AF: Department of Geophysics, University of Athens, Faculty of Geology and Geoenvironment, Panepistimiopolis, Zografou, Athens, 15784, Greece
AU: Kaviris, G
EM: gkaviris@geol.uoa.gr
AF: Department of Geophysics, University of Athens, Faculty of Geology and Geoenvironment, Panepistimiopolis, Zografou, Athens, 15784, Greece
AB: Greece is an earthquake prone country, as evidenced by the fact that almost half the seismic energy in Europe is released in its territory both on land and offshore. Numerous large earthquakes have occurred since the antiquity causing considerable damages. Furthermore, as it is well known, Greece is a country of rich cultural heritage, that incorporates a large number of archeological (more than 50%), Byzantine and recent sites and monuments, as well as a continuously growing number of museums. The Greek Seismic Design Code (NEAK, 2004) which governs building, repairing and retrofitting practices divides the country into three zones corresponding to acceleration values of 0.16g, 0.24g and 0.36g. According to the results obtained from a detailed GIS implementation the majority of Greek monuments lie within the boundaries of the second zone (more than 60%). In addition, their geographical distribution in association with the available geological data reveals that more than 50% are sited on soft soils, in contrast to a 30% on rock formations. The effects of these factors are reflected to earthquake related damages observed (evidenced) or reported at various cultural sites. Therefore, the detailed estimation of the seismic hazard for each monument, microzonation studies in the vicinity of each site and estimation of hazard due to tsunamis, liquefaction and landslides related to earthquakes, should be considered as a necessary step towards retrofitting. Applications that reveal the contribution of seismology to the preservation of Greek monuments will be presented and discussed, such as studies performed in Knossos (Crete) leading to representative design values, the church of Kapnikarea (Athens), where the influence of man-made seismic energy sources was examined and the Cathedral of Athens where it was found that local geological conditions amplify the ground velocity for frequencies close to the dominant frequency, a fact that was taken into account during the reconstruction works. ACKNOWLEDGMENTS The present study was co-funded by the European Social Fund and National Resources - (EPEAEK II) PYTHAGORAS, contract No. 70/3/7306.
DE: 7200 SEISMOLOGY
DE: 7212 Earthquake ground motions and engineering seismology
SC: Seismology [S]
MN: 2007 Fall Meeting