Spatial features of SFE current systems and geomagnetic pulsations Psfe related to gamma radiation from solar flares

We studied spatial features of electric current systems, producing the geomagnetic solar flare effect (SFE), and features of geomagnetic pulsations Psfe on the base of experimental data from the 30 most powerful solar flares (> X5 class). We performed a detailed analysis of the geomagnetic response to the hard electromagnetic radiation from X29 solar flare on November 4, 2003 and from the X17 flare on September 7, 2005. It was shown that during the flares emitting intense X- and γ-rays, the SFE and geomagnetic pulsations were observed globally, including the night hemisphere and high latitudes at the Earth's surface as well as in the inner magnetosphere. Cause-effect relations of the considered phenomena are discussed.