微地震信号低衰减传播

摘要

本文探讨了弱地震信号低衰减传播的可能性。结果表明，地下的地震信号传播介质均表现出一定的弹性，振动信号幅度在低于介质弹性限度时传播，衰减很小，表现出低衰减特征。这一特点保证了可以在地面，甚至黄土覆盖区监测到微地震信号。%This-article-explored-the-possibility-of-spread-of-weak-seismic-signals-and-low-at-tenuation.-The-results-showed-that-both-underground-seismic-signal-propagation-medium-showed-a-degree-of-elasticity,the-vibration-signal-amplitude,just-below-the-elastic-limit-attenu-ation-is-very-small,showing-low-attenuation-characteristics.-This-feature-ensures-that-on-the-ground,and-even-the-loess-coverage-area-of-micro-seismic-signal-detected.