Temporary Seismic Broadband Network Acquired Data on Hellenic Subduction Zone



Data acquired from a network of seismic broadband stations that recently operated in the eastern Mediterranean region will be made available to the seismological community after the project concludes, in June 2011. The network, which consisted of both land and ocean bottom seismographs, functioned from October 2005 until its deinstallation in March 2007 as part of the Exploring the Geodynamics of Subducted Lithosphere Using an Amphibian Deployment of Seismo graphs (EGELADOS) project (Figure 1). The network, which covered the entire southern Aegean Sea from the Peloponnesus region in the west to western Turkey in the east, was designed to study seismicity as well as the distribution of the elastic and anelastic material properties in the Hellenic subduction zone to better understand its complex geotectonic setting and evolution.

The network encompassed 45 Güralp 60-second seismometers, four Streckeisen STS-2 seismo meters, and seven 1-hertz Mark seismometers at land sites. The seismometers were supplemented by 22 ocean bottom seismographs equipped with Güralp 60-second seismometers and broadband hydrophones. In addition, the network was designed to incorporate the seven permanent broadband seismographs of the GeoForschungsNetz (GEOFON) network and one Mediterranean Very Broadband Seismographic Network (MedNet) station.