东南极普里兹湾海冰面地磁考察

中国第九次南极考察期间在中山站北部普里兹湾中面积约１３２ｋｍ２的测区内进行了地磁测量，为日后的南极内陆考察作前期准备。磁测资料表明，这里有一个宽约５－８ｋｍ、走向ＮＷ的磁异常，其幅度达５００ｎＴ。磁异常可能是由深成岩浆的侵入体或富含磁铁矿的地质体引起的，磁源物体的埋深在海冰面以下０．３－２．０ｋｍ。考察实践证明：只要经过充分准备，利用普里兹湾冬季冰封的有利条件，开展大范围的海冰面地球物理考察，在技术上是可行的。     

形变测量与历史地震

本文对形变测量的分类，作用及据其对我国大陆强震危险背景区的估计结果作了简单的介绍，同时对我国大陆及周边地区１８９７年以来强震活的时空分布规律进行了讨论，从中发现了强震活动区随时间由西向东迁移这一有趣的现象和规律，结合大面积面形变测量给出的全国地震危险区分布的结果，将形变资料判断的应加强监测的２１个重点监视区减少到８个，这一结果对地震预测研究及综合防震减灾对策的研究均有重要的参考价值。     

地电阻率变化与孕震过程研究

在分析唐山７．８级地震前后地电阻率异常变化特征的基础上，研究地电阻率异常量△ρ／ρ０与应变的关系，给出了地电阻率异常量△ρｓ／ρ０对应变ε的转换关系式；分析和研究地电阻率异常发展，演变特征与地震孕震，发生过程的联系及其前兆异常标志。     

论地震的“发震时段”

用地震电磁波法作临震预报，发现地震的发震时间是有规律性的，仪器到的辽南发生的地方震和有些大地震，就是在预测的“发震时段”里发生的。     

地壳运动全变率指标（NDR）系与地震事件

地壳运动全变率指标（ＮＤＲ）系由地表横向变形弯曲度Ｓ，垂向切变反差度τ和地壳运动总强度Ｍｔ组成，是一组定量表示地震危险性的动态地质标志。对华北地区１９６６～１９９６年５次地震（Ｍ＞６）震前地壳运动进行ＮＤＲ系计算，发现ＮＤＲ系异常特征与地震事件间存在密切关系。该法对地震预报、工程地震、评估地壳活动性及地球动力学研究等方面，具有广泛的应用前景     

唐山地震前一次中短期预报的追忆

１９７６年，作者及同事根据地震节线法画出了５个地震危险区，其中Ⅱ区１９７６年４月发生了林格尔６．３级地震。又结合地应力和地磁资料，预测了７－８月份华北北部可能有效较大地震。此文目的是纪念唐山地震２０周年。     

大同－阳高地震前后华北地区形变场动态及其演化

叙述了１９８９年大同一阳高地震地壳形变的主要特征，指出其具广泛性、多样性和阶段性。分析了这次地震前后大地形变场的动态和演化，并从不同时空尺度对这次地震后华北地区形变场的新格局和未来地震形势进行了讨论。     

Analysis on the Regional Features of Coda Attenuation Before and After the 1992 Qina (M_S= 5.4, 5.1) Earthquakes in WYEPSA

Using the theoretical model of coda scattering from local earthquakes, we have studied the features of time-space variations of the attenuation rate β of coda amplitude and coda Qc-1 values before and after the Qina earthquakes (MS5.4 and MS5.1) in Dec. 1992 in West Yunnan Earthquake Prediction Study Area (WYEPSA). The study results show that the attenuation rate of coda amplitude has remarkable regional inhomogeneity in the near-field (△ <50 km) around the main shock: β = 0.0076 s-1 and Qc-1 = 0.0056 during the main shock while (3 = 0.0209 s-1 and Qc-1 = 0.0153 during the aftershock. The Qc-1 value shows an approximate 3-foid variation before and after the main shock. We have also obtained the regional averages of β = 0.0235 s-1 and Qc-1 = 0.0153, which show that the coda attenuation in surrounding areas (△ > 50 km) far away from the epicenter of the main shock did not change much before and after the main shock. The evolution of Qc-1 values of the main seismic sequence with time has passed throug     

Mutation Anomalies of the Wave Velocity Ratio at a Single Station Before the Lancang-Gengma Earthquake

In this paper,the process of dynamic variation of the wave velocity ratio that occurred at a single station,such as Lancang,Tengchong,and Eryuan stations,8 years before the Lancang-Gengma earthquakes(Ms=7.6 and 7.2),is studied by applying the synthetic method as a whole.It is found that the moderately strong and strong earthquakes 250 km away that occurred since 1983 may lead to mutation anomalies of the wave velocity ratio in the Lancang region.The mutation amplitude is increased with the approaching time and distance of a large event.The reliability of mutation data for the wave velocity ratio has been demonstrated in many ways.The application of mutation of the wave velocity ratio to earthquake prediction and its physical explanation are discussed.