Anomalous Seismo-Electromagnetic Emission Related with Seismic Waves

This paper reports the rare high intensity electromagnetic pulses associated with earthquakes, with different to atmospherics spectrum signature. On the base of actual data records, the cases of generation of anomalous seismo-electromagnetic emission founded. These natural sub-millisecond electromagnetic pulses have been associated with passage of seismic waves through the place of electromagnetic field observations. The waveform, spectrum and time characteristics of sub-millisecond electromagnetic pulses have been described. The deeper the source the lower frequencies can be observed in the spectrum on the surface.