CAJ | 학술논문

通过对泾阳地震台短水准观测资料和地震关系分析，认为观测资料对南北地震带西南方向部分地震有一定映震能力。对影响观测的问题进行初步分析。
통과대경양지진태단수준관측자료화지진관계분석，인위관측자료대남북지진대서남방향부분지진유일정영진능력。대영향관측적문제진행초보분석。
Short leveling data from Jingyang seismological station comprise some of the most important information that helps to monitor the Kouzhen—Guanshan fault zone.Several strong earthquakes have struck the surrounding ar-ea of Shaanxi Province:the Ninger M 6.4 earthquake on June 3,2007,the Lijiang M 7.0 earthquake on February 3, 1 996 in Yunnan,and the Anxian M 5.0 earthquake on September 3,1 999 in Sichuan.Short leveling data from Jingyang seismological station show varying degrees of anomaly.There was an anomaly decline that lasted for 18 days at a rate of 0.005 mm per day before the Ninger M 6.4 earthquake,for 23 days at a rate of 0.005 mm per day before the Li-jiang M 7.0 earthquake,and for 9 days at a rate of 0.009 mm per day before the Anxian M 5.0 earthquake.This study evaluates the ability of short leveling data at Jingyang to predict earthquakes by analyzing the relationship between magnitude,anomaly decline rate,and duration of anomaly decline along with the relationship between magnitude and the duration of the anomaly in cross-fault deformation measurement.To intuitively portray connections among these data,this study clearly indicates anomalies in the data using charts.The data will be used in the experimental formu-lae of the China Earthquake Administration with other earthquakes,and the results harvested.This study considers that an ability to predict earthquakes will be revealed in the short leveling data of Jingyang seismological station,lo-cated in the southwest area of the north-south seismic zone.At the same time,this study discusses how much damage has been caused to the observation environment by the major quarries near the short leveling area and the effect that the arrival and departure of heavy trucks has had on observation data.After summarizing and rethinking the prob-lems of seismic observation,this study gathers together certain experiences for use in future earthquake prediction and makes some suggestions to improve the quality of short leveling observation.