Supplementary material to “Temporary Seismic Broadband Network Acquired Data on Hellenic Subduction Zone”
Wolfgang Friederich and Thomas Meier, Institut für Geologie, Mineralogie und Geophysik, Ruhr-University Bochum, Bochum, Germany
Citation:
Friederich, W., and T. Meier (2008), Temporary seismic broadband network acquired data on Hellenic subduction zone, Eos Trans. AGU, 89(40), 378.
[Full Article (pdf)]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 Seismographs (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.
Fig. 1. Map of the locations of the seismographs of the Exploring the Geodynamics of Subducted Lithosphere Using an Amphibian Deployment of Seismographs (EGELADOS) network. Squares indicate broadband stations with Güralp 60-second seismometers; upright triangles indicate 1-hertz seismometers; inverted triangles indicate Streckeisen STS-2 seismometers; diamonds indicate GEOFON and MedNet stations; and circles indicate ocean bottom seismographs.
The network encompassed 45 Güralp 60-second seismometers, four Streckeisen STS-2 seismometers, 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.
Selected data of regional seismological permanent networks operated by the National Observatory of Athens and the Kandilli Observatory in Istanbul, Turkey, have been integrated into the data set. The acquired data are archived at the GEOFON data center at GeoForschungsZentrum Potsdam. For more information, visit http://www.geophysik.ruhr-uni-bochum.de/research/egelados/index.html.
The principal investigators of the EGELADOS project are the authors as well as collaborators with a number of institutions, including Costantinos Papazachos, Geophysical Laboratory, Aristotle University of Thessaloniki (Greece); Tuncay Taymaz, Department of Geophysical Engineering, Istanbul Technical University (Turkey); George Stavrakakis, Institute of Geodynamics, National Observatory of Athens (Greece); Torsten Dahm, Institute of Geophysics, University of Hamburg (Germany); Rainer Kind, GeoForschungsZentrum Potsdam (Germany); Kasper Fischer, Institute of Geology, Mineralogy, and Geophysics, Ruhr-University Bochum (Germany); and Antonis Vafidis, Technical University of Crete (Greece). The ocean bottom seismographs and the major part of the land seismographs were kindly provided by the German instrument pool for amphibian seismology (DEPAS). Funding for the project and the network is provided by the German Science Foundation (Deutsche Forschungsgemeinschaft).
—Wolfgang Friederich and Thomas Meier, Institut für Geologie, Mineralogie und Geophysik, Ruhr-University Bochum, Bochum, Germany; E-mail: friederich@geophysik.rub.de
