首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Directionality of surface high-frequency geoacoustic emission during deformational disturbances
Authors:B M Shevtsov  Yu V Marapulets  A O Shcherbina
Institution:1.Institute of Cosmophysical Research and Radio Wave Propagation, Far East Division,Russian Academy of Sciences,Paratunka, Kamchatka,Russia
Abstract:Changes in the directionality of surface high-frequency geoacoustic emission during periods of deformational disturbances on the diurnal time scale prior to strong seismic events on Kamchatka have been investigated. It has been shown that while the emission intensity grows by over an order of magnitude, sharp maxima appear in the direction of longitudinal acoustic oscillations. Based on their position, the orientation of the major compression axis can be determined, whose chaotic motion exhibits two metastable states around the direction to the epicenter of the earthquake.
Keywords:
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号