THE TIME-DIFFERENCE BETWEEN THE ELECTRIC AND MAGNETIC FIELD VARIATIONS OF SEISMIC ELECTRIC SIGNALS AND THE SPACE TECHNIGUES

Abstract

Seismic Electric Signals are transmitted through the earth by following diffusion type equations. This, when also considering the heterogeneity of the earth's crust, plays a key-role in the explanation of the recent finding according to which the electric field "arrives" before the time-derivative of the magnetic field. We show that this finding is probably not detectable by the usual Space Techniques