Monitoring of the seism-electromagnetic Earth background in connection with seismic activity

A problem of comprehensive studies of variations of seismic, seism-acoustic and radio wave emission<br>of lithosphere is explored with the aim of seismic activity prediction. On the base of contemporary<br>ideas of active geophysical medium as a block-hierarchic structure mechanisms of transformation of<br>motion energy of rocks into energy of transient magnetic field are being discussed. It is mentioned<br>that the presence of radio wave background by itself, registered on the earth surface is the reflection<br>and indicator of nonlinearity of mechano-electromagnetic transformations in lithosphere —<br>distributed excitable medium and the main process, which occurs in this medium, is the process of its<br>self-organization. Possible directions of complex experimental studies of seism-electromagnetic<br>disturbances aimed at diagnostics of geodynamic processes are being discussed.