Features of VLF radionoise variations in the seismoactive Baikal rift zone

摘要

As a result of continuous monitoring of natural impulse electromagnetic field of the Earth in Baikal lake rift zone, it has been found that daily and seasonal variations of very low frequency (VLF) electromagnetic field are stable during a seismic calm period. It has been established that a few days before a strong imminent earthquake the intensity of VLF electromagnetic field rises or falls, depending on the location of the earthquake (land or water).