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Pham, V. N.
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Pham, V. N.
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- PublicationOpen AccessCrustal structure of the Gulf of Corinth in Central Greece, determined from magnetotelluric soundings(1997-01)
; ; ; ; ; ;Chouliaras, G.; National Observatory of Athens, Institute of Geodynamics, Athens, Greece ;Pham, V. N.; Institut de Physique du Globe de Paris, Laboratoire de Geomagnetisme, Paris, France ;Boyer, D.; Institut de Physique du Globe de Paris, Laboratoire de Geomagnetisme, Paris, France ;Bernard, P.; Institut de Physique du Globe de Paris, Dèpartement de Seismologie, Paris, France ;Stavrakakis, G. N.; National Observatory of Athens, Institute of Geodynamics, Athens, Greece; ; ; ; The magnetotelluric sounding method at 15 sites was employed to investigate the electrical properties of the crust and upper mantle near the epicentral region of the June 15 1995, Ms = 6.1, destructive earthquake in the Gulf of Corinth, Central Greece. The magnetotelluric results indicate the presence of a conductive zone in the mid-crust at a depth of 9 to 12 km near the seismogenetic region. The existence of this zone with a thickness of around 7 km can be explained by the presence of fluids in a zone of ductile shear. A second electrical discontinuity was also found at a depth of about 28 km and this may well correspond to the Moho below the Gulf of Corinth.137 137