The radiation of the electric dipole has been calculated, located in the lithosphere and oriented normal to the surface of the Earth. This radiation, in the form of a side wave, reaches the boundary of the atmosphere and lithosphere, and further through the air reaches the measuring complex. This radiation may serve as a harbinger of the earthquake. Offered a method of detecting the electromagnetic Harbinger earthquakes. The measuring complex consists of a vertical electrical antenna and toroidal magnetic antennas located on the Earth's surface. It has been established that the measuring complex is most sensitive to the radiation of the electric dipole, located in the lithosphere array and oriented normally to the Earth's surface. The measuring complex records electromagnetic Harbingers. Detected signal has a number of features that are different from other radiation that allows believe it is a Harbinger of the Earthquake.