Joint seismic and CPT studies of the sliding loess wall along the danuber river at S-Hungary

A. C.S. Kovács, L. Zilahi-Sebess, T. Bodoky, T. Gúthy, E. Hegedus, R. Csabafi

Research output: Conference contribution

Abstract

A 30 to 35 m wide slice of a 100m height loess wall sank more than 10 m at the bank of the Danube near Dunaszekcso (Hungary) on 12th of February, 2008. Eötvös Lorand Geophysical Institute (ELGI) was requested a geophysical investigation of the area. ELGI deployed a system of six continuously operating seismic stations to observe the seismic micro-emissions. Two main source areas of seismic micro-emission were allocated after the data analysis. We made four points of CPT a depth of 12 m on the bank of the Danube and we have concluded that the movement of the loess wall was caused not by a sliding phenomenon. We used 121 units of RefTek 125 single channel autonomous seismic recorder and a vibrator as a source to make two seismic lines beneath and above the loess wall. Based on the structural imagefrom seismic tomography and reflection sections sedimentary layers of different thicknesses can be found on the old basement up to the level of the river Danube. The anomalies of the two profiles mark out a tectonic zone running in an approximately E-W direction.

Original languageEnglish
Title of host publicationNear Surface 2009 - 15th European Meeting of Environmental and Engineering Geophysics
PublisherEuropean Association of Geoscientists and Engineers, EAGE
ISBN (Print)9073781728, 9789073781726
Publication statusPublished - jan. 1 2009
Event15th European Meeting of Environmental and Engineering Geophysics of the Near Surface Geoscience Division of EAGE, Near Surface 2009 - Dublin, Ireland
Duration: szept. 7 2009szept. 9 2009

Publication series

NameNear Surface 2009 - 15th European Meeting of Environmental and Engineering Geophysics

Other

Other15th European Meeting of Environmental and Engineering Geophysics of the Near Surface Geoscience Division of EAGE, Near Surface 2009
CountryIreland
CityDublin
Period9/7/099/9/09

ASJC Scopus subject areas

  • Geophysics
  • Geotechnical Engineering and Engineering Geology

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    Kovács, A. C. S., Zilahi-Sebess, L., Bodoky, T., Gúthy, T., Hegedus, E., & Csabafi, R. (2009). Joint seismic and CPT studies of the sliding loess wall along the danuber river at S-Hungary. In Near Surface 2009 - 15th European Meeting of Environmental and Engineering Geophysics (Near Surface 2009 - 15th European Meeting of Environmental and Engineering Geophysics). European Association of Geoscientists and Engineers, EAGE.