Magnetovariational and Magnetotelluric study of loannina region sensitive to Seismic Electric Signals (SES). I

Konstantinos Eftaxias, Igor I. Rokityansky, Nikolaos Bogris, Georgios Balasis, Panayiotis Varotsos
2002 Journal of Atmospheric Electricity  
A detailed magnetovariational (MVP) and magnetotelluric (MT) study was conducted at 42 sites around Ioannina SES sensitive station. The following tentative model is suggested, as being compatible with the MVP and MT data: a regional 2D structure ofN40°W strike, which contains a crustal layer (CL) with a gap 26±5 km wide. Near the center of this gap, crustal conductor(s) does exist which creates an MVP anomaly with a maximum anomalous field at periods around 300s and spatial dimension of a few
more » ... ns of km. Furthermore, a set of narrow (no more than 1 km wide) and shallow (1-3 km deep) conductors of limited length is manifested by the MTS E-polarization data; these conductors can be limited in the vertical dimension or can be continued in the deeper interior. It seems quite plausible that one (or two) of these shallow conductors is connected to the regional crustal conductor of quasi-2D behavior which can have continuation long outside the area studied and also can be continued in the deeper interior.
doi:10.1541/jae.22.113 fatcat:boknbflxyfhuhkxgcuta6pggce