THE IMPACT OF STORM MICROSEISMIC VIBRATIO NS ON THE SEISMICITY OF THEKURIL ISLANDS IN THE PACIFIC AND LAKE-BAIKAL

The impact of vibrations (microseisms) caused by standing water waves originated by cyclones (typhoons) on the appearance of earthquakes is considered. It is shown that during storms on the Pacific in the regio n of the Kuril Islands the number of weak earthquakes located in the u pper horizons of the Earth's crust (depth h less than or equal to 20 k m) decreases. A similar effect is observed on Lake Baikal. A decrease in the number of earthquakes during storms takes place as compared wit h the seismicity of quiet weather. The mechanism of impact of storm mi croseisms on the number of weak earthquakes is discussed. The conclusi on is made that the extrinsic energy is spent on restoring the equilib rium of limited volumes of a seismoactive medium after some primary ea rthquakes of stationary regime. Owing to this the space-time distribut ion of seismic events is changed, as represented by a total <<flow>> o f primary and secondary earthquakes.