从震级偏差看震级问题

震级为地震的基本参数之一，由于测定震级普遍存在偏差等问题，测定震级的稳定性问题一直令人关注。该文就震级偏差的起因进行了讨论，认为产生偏差的主要原因是震级本身问题和地球内部结构的各向异性导致地震波能量记录失真。

VIEWING MAGNITUDE PROBLEM FROM MAGNITUDE DEVIATION

Earthquake magnitude is one of the basic earthquake parameters.As deviation generally exists in earthquake magnitude determination,the stability of magnitude determination has been paid special attention . In this paper,the authors have a discussion on the cause of magnitude deviation,thinking that magnitude deviation is caused mainly by magnitude itself and by the distortion of seismic wave energy recorded, a result from the anisotropy of internal structure of the earth.