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| 1 | Statistical Research on S-Wave Incident Angle显示文摘In this paper,the following assumptions are made:1) seismic source is a point one;2) the near-fieid.seismic waves are body ones:3) the medium of the earth is a half-space which is homogeneous and elastic.Yccording to the above-mentioned assumptions,this paper obtains a theoretical formula to estimate S-wave incident angle by using the record of strong ground motion.During the process of calculations,the paper also presents a method of getting in-plane and inti-plane motions from the record of strong ground motion.By making use of 214 records of strong ground motion in the western America,this paper gives a statistical relation among S-wave incident angle,epicentral distance and frequency.The results show that the average value of S-wave incident angle is about 57,and has little to do with the epicentral distance. | Jin Xing and Liao ZhenpengInstitute of Engineering Mechanics,SSB,Harbin,Heilongjiang 150080,China | 1994 | Earthquake Research in China1994，8，1： | 21 |
| 2 | Studies on the Surface Rupture Zone of 1303 Hongdong Earthquake of M =8 and Paleoearthquakes of Huoshan Fault in Shanxi Province显示文摘An earthquake of M=8 occurred in the Linfen Basin of the Shanxi graben system in 1303,producing a surface rupture zone about 45km long.Compiling a geological map at 1:10,000 and studying in detail the rupture zone,its dextral strike-slip displacement is determined to be 4-8.6 m,and normal dip-slip displacement up to 3.5-5 m.In this paper the geochronological evidence for the formation of the surface rupture zone is provided and the Huoshan fault is confirmed to be the seismogenic structure for the M=8 earthquake.Field trenching enables us to identify two paleoseismic events having occurred along the Huoshan fault since the middle Holocene before the M8 earthquake.A recurrence interval of these three events including 1303 Hongdong M 8 earthquake is determined to be up to 1500-2000 years.The result corresponds to the mean recurrence interval calculated from slip rate on the Huoshan fault during Holocene. | Deng Qidong and Xu XiweiInstitute of Geology,SSB,Beijing 100029,China | 1994 | Earthquake Research in China1994，8，2： | 4 |
| 3 | Completeness Analysis of the Historical Earthquake Catalogue in China显示文摘The historical earthquake catalogue of China has lasted more than 3000 years,and most of its data are inferred from historical records.The earthquake catalogue in earlier times is not complete owing to various reasons,so some events are lost.This paper estimates the loss rate of earthquakes with various magnitudes in the historical earthquake catalogue for different time intervals quantitatively by using the Gutenberg-Richter formula and modern instrumental records,which will provide the references for statistic research in seismicity. | Chen Yong and Chen QifuState Seismological Bureau,Beijing 100036,ChinaCenter for Analysis and Prediction,SSB,Beijing 100036,China | 1995 | Earthquake Research in China1995，9，4： | 3 |
| 4 | Confidence Evaluation of Medium-and Long-Term Earthquake Prediction by Use of the Analytical Hierarchy Process显示文摘This paper offers an approach to the relative confidence level of medium- and long-term earthquake prediction methods by use of the analytical hierarchy process (AHP). We construct the criterion judgment matrices according to the results of an expert questionnaire known as the Delphi scheme. From the matrices we can obtain a scale for the relative preference or priority weight of each factor. The quantitative weights might be applied to make synthetic prediction of earthquake risk areas in the northern part of the North China seismic region. | Wang Xiaoqing and Gao MengtanCenter for Analysis and Prediction, SSB, Beijing 100036, China Institute of Geophysics, SSB, Beijing 100081, China | 1996 | Earthquake Research in China1996，10，2： | 3 |
| 5 | Some Fundamental Problems of Geodynamics and Application of Earth Observations by Space-Based Measurements显示文摘Although great-progress has been made in the earth sciences,some fundamental problems of geodynamics remain unsolved.They are concerned with the whole earth as well as regional tectonics,such as the west Pacific and Qinghai-Xizhang plateau.The new generation of earth observation by space-based measurement will contribute to solving these problems of geodynamics.In this regard,some specific plans about application of these techniques are suggested in this paper. | Ma Zongjin,Zhang Peizhen,Hong Hanjin,and Gao Xianglin Institute of Geology,SSB,Beijing 100029,China | 1997 | Earthquake Research in China1997，11，1： | 2 |
| 6 | Seismic Hazard Assessment in the Boundary Region of Indo-China:First Phase of Implementation of the Global Seismic Hazard Assessment Program (GSHAP) in Continental Asia显示文摘The primary goal of the demonstration project endorsed by the Scientific and Technical Committee for IDNDR in 1992 is to ensure that national agencies are able to assess seismic hazard in a regionally coordinated fashion by using advanced methods.China,as a Regional Center of Central Southern Asia,has contacted with countries of the region to realistically practice seismic hazard assessments of Continental Asia.A test area located in the collision boundary between the Indian and Eurasian plates was chosen to examine the seismic hazard assessment approach in the regional coordinates.The seismotectonics and three versions of seismic sources of the test area are described in this paper and under the Global Seismic Hazard Assessment Program(GSHAP),guidelines an earthquake catalogue of the test area was assembled.Because of the incompleteness of earthquake data in different countries,we adopt different time windows for different magnitude intervals in order to obtain the seismicity parameters of sources.By | Yang Zhixian and Zhang PeizhenInstitute of Crustal Dynamics,SSB,Beijing 100085,China Institute of Geology,SSB,Beijing 100029,China | 1997 | Earthquake Research in China1997，11，3： | 2 |
| 7 | Application of Information Gain to Estimating the Seismic Tendency显示文摘Considering two seismic parameters,energy and the frequency of an earthquake as a whole from the definition of information gain in entropy,we study the information gain of M≥6.0 earthquakes from the world earthquake catalogue during 1900-1992.The results show that the information gain decreases before strong earthquakes.Our study of the recent seismic tendency of large earthquakes shows that the probability of earthquakes with M≥8.5 is low for the near future around the world.The information gain technique provides a new approach to tracing and predicting earthquakes from the data of moderate and small earthquakes. | Shen Ping,Shen Jing,and Feng GuozhengInstitute of Geophysics,SSB,Beijing 100081,China | 1997 | Earthquake Research in China1997，11，2： | 2 |
| 8 | Anisotropic charge Kondo effect in a triple quantum dot显示文摘 | Gwangsu Y Jinhong P Lee SSB | 2014 | Phys Rev Lett2014，113，23： | 1 |
| 9 | Research Note显示文摘Comprehensiveindicesofearlyjudgementforearthquakesequencetypebypaternrecogni┐tionCUI-YINGZHOU1)(周翠英),YU-XIAZHANG2)(张宇霞),HONG... | CUI YING ZHOU 1) , YU XIA ZHANG 2) , HONG WEI WANG 1) and LI QIANG JIAO 2) 1) Seismological Bureau of Shandong Province, Jinan 250021, China 2) Center for Analysis and Prediction, SSB, Beijing 100036, China | 1996 | Acta Seismologica Sinica(English Edition)1996，9，1： | 1 |
| 10 | The Mathematic Models of the Kalman Filtering for Across-Fault Measurement显示文摘This paper makes a probe into the application of the Kalman filtering method to the data processing of across-fault measurements.On the basis of statistical regression,the mathematic and stochastic models of filtration are established by combining the regression method with Kalman filtering.In the filtering computation,not only the randomness of fault movements but also the time-dependent variation of environmental effects have been taken into consideration.By use of the adaptive filtering method,an estimation of the dynamic noise variance matrix is obtained through iteration.Models for one measuring line(leveling line or baseline),two measuring lines(both leveling lines or both baselines)and four measuring lines(two leveling lines and two baselines)are derived and established systematically.By means of these models,the data of across-fault measurements can be processed dynamically in real-time to provide the filtered values of height difference between benchmarks or baseline length at different time | You Lilan,Liu Dajie,Huang Jia’na,Liu Xue and Zhou KechangInstitute of Crustat Dynamics,SSB,Beijing 100085,China Wuhan Technical University of Surveying and Mapping,Wuhan 430070,China National Center for Seismic Data and Inforraanon,SSB,Beijing 100045,China | 1994 | Earthquake Research in China1994，8，3： | 1 |
| 11 | Period Doubling Bifurcation of Stress Drop for Stick-slip and Its Physical Implication显示文摘It is revealed in frictional experiments on medium-scale samples that period doubling bifurcation of stress drop for stick-slip occurs due to macroscopic heterogeneity of the sliding surface under conditions for typical stick-slip.The observed data show that the period doubling bifurcation of stress drop results from the alternate occurrence of strain release along the whole fault and along part of fault.This implies that complicated nonlinear behavior corresponds to clear physical implication in some cases. | Ma Shengli,Liu Liqiang,Ma Jin,Liu Tianchang and Wu XiuquanInstitute of Geology,SSB,Beijing 100029,China | 1998 | Earthquake Research in China1998，12，2： | 1 |
| 12 | Application of Fracture Gas Measurement to the Earthquake Studies in China显示文摘The earth is an enormous open system and the gas-releasing phenomenon of the crust is the major means of exchange of matters and energy at different crustal depth.Therefore,a powerful gas-releasing channel is actually a 'window' to understand the subterranean physical and chemical variations as well as stress-strain changes.The releasing places,quantities and ways obtained by systematically observing and recording can reveal the pressure variation and opening state of channels in the crust,and furthermore provide important information for earthquake prediction,tectonic activity and monitoring of volcanic activity.The fracture-gas measurement has been applied widely to earthquake sciences and has played an important role.The authors introduced systematically the application situation and preliminary achievements in China,and pointed out that though this technique is at the beginning stage and not very sophisticated but its capacities for being easy-carrying,fast-operating and inexpensive,makes for a | Wang Chengmin and Li XuanhuCenter tor Analysis and Prediction,SSB,Beijing 100036,ChinaDepartment of Sciendfic Programming and Earthquake Monitoring,SSB,Beijing 100036,China | 1994 | Earthquake Research in China1994，8，2： | 1 |
| 13 | 国家地震局地震工程代表团赴美访问显示文摘1992年7月27日至8月7日,以国家地震局副局长陈章立为首的国家地震局地震工程代表团访问了美国。访问期间,代表团参观访问了8个机构,本文就其中的5个机构和美国国家减轻地震灾害计划作了介绍。 | The Earthquake Engineering Delegation of SSB (State Seismological Bureau,Beijing,100036) | 1993 | 国际地震动态1993，，3： | 1 |
| 14 | Interpretation of S-Wave Data from Fanshi-Taipusiqi DSS Profile and Analysis of Correlation between Deep Structural Characteristics and Seismicity显示文摘By processing S-wave data from the Fanshi-Huai’an-Taipusiqi DSS profile,which is a three-component,wide-angle reflection/refraction profile,and in the light of the results from P-wave interpretation,two-dimensional(2-D)structures of the crust and upper mantle are presented,including S-wave velocity Vs and the physical parameter of medium-Poisson’s ratio a.Taking other geological and geophysical information into account,and with reference to the results from petrophysical experiments at home and abroad,we carried out interpretation and inference with respect to deep crustal structure,tectonics,and lithologic characters.It has been concluded that in the upper and middle crust,a values are mostly not greater than 0.25,and rocks,which generally assume brittle,are mainly composed of granite; the rocks in the lower layer of the upper crust between Yangyuan-Huai’an containing inorganic CO2 itself releases carbon; for the rocks in the lower crust and crust-mantle transitional zone,which are comparatively | Zhou Xuesong,Song Songyan,Zhang Xiankang,Qiu Shuyan,Gong Yi,and Song JianliResearch Center of Exploration Geophysics,SSB,Zhengzhou 450003,China | 1998 | Earthquake Research in China1998，12，1： | 1 |
| 15 | Fault Geometry and Departure of Precursors From the Epicenter显示文摘Different tectonic elements may play different roles and their deformation styles and types of anomalies are also different in the process of deformation.Such differences may be the cause of the phenomena of the departure from the region with obvious anomalies from the coming epicenter,which are called 'departure of precursors from epicenter.' From some new experimental and numerical modeling results,five types of deformation elements are identified according to their roles in the process of deformation in a region.They are the brake(or locked),slip,yield,sensitive,and valve elements.Spatial distribution of different elements,especially sensitive and slip elements,are discussed by taking the bend fault,extension,compression,and complex en-echelon faults as examples.These elements with different roles may overlap each other in some cases or be separated in other cases.It is obvious that for different fault geometry,the spatial layout of these elements is different and thus the position and style of | Ma Jin,Liu Liqiang,and Ma ShengliInstitute of Geology,SSB,Beijing 100029,China | 1998 | Earthquake Research in China1998，12，1： | 1 |
| 16 | Seismogenic Structure of the 1411 Southern Damxung (Damdoi) Earthquake with M=8 in Tibet显示文摘The seismogenic structure of the 1411 southern Damxung(Damdoi)earthquake with M=8 in Tibet is discussed in detail in this paper.It is pointed out that the Nyainqentanglha southern pediment fault is the seismogenic one of the 1411 southern Damxung(Damdoi)earthquake with M=8,and the macroepicenter is located at the intersection of the extensional shear fault within Nasego-Garbogo pull-apart basin and the secondary strike-slipping fault with larger amplitude of neotectonic activity at the southwestern side of the basin.Besides,there is obvious anomaly of the geophysical fields in the seismic area,indicating that occurrence of 1411 southern Damxung(Damdoi)earthquake with M=8 was not only controlled by the superstructure but also the background of deep-seated structure. | Wu Zhangnung,Cao Zhongquan,Shentu Bingming and Deng QidongInsntute of Geology,SSB,Beijing 100029,China | 1994 | Earthquake Research in China1994，8，1： | 1 |
| 17 | 不同区划方法所得结果的对比研究显示文摘通过对晋中南和攀西两个实验区所进行的潜心研究,已完成不同区划方法的专题论文12篇。综合对比研究的结果表明,在现有区划方法的改进与新区划方法的探讨方面,取得了8点显著的进展。这些进展为“九五”期间的区划研究创造了条件。 | (85070102 Subject Group, SSB)(State Seismological Bureau, Beijing 100036, China) | 1996 | 中国地震1996，12，A00： | 1 |
| 18 | 新的中国地震烈度区划图(1990)简介显示文摘由于地震的发生和地震动特性都具有随机因素,还不能作出准确的预测;工程结构力学和抗震设计发展到了以极限状态概率为安全标准的概率设计阶段,所以,新的区划图采用了地震危险性概率分析方法。考虑到我国地震活动的特点和长期地震预测方面的研究成果,对已有的方法进行了卓有成效的改进,使之能更好地描述大陆地震活动的时、空不均匀性;使区划结果能反映各地未来地震的危险水平。本文简要论述了新编图的技术思路、科学水平与特点,及其推广应用前景等。 | The Compiling Office and the Board for Compiling Zoning Maps, SSB | 1992 | 国际地震动态1992，，6： | 1 |
| 19 | 第29届IASPEI大会概况及其主要专题讨论会和研讨会内容汇编 | Members of the SSB Delegation | 1998 | 国际地震动态1998，，6： | 1 |
| 20 | Preliminary Study on Probabilistic Prediction of Seismic Hazard in a Period of 10 Years显示文摘Many uncertainty factors need be dealt with in the prediction of seismic hazard for a 10-year period.Restricted by these uncertainties,the result of prediction is also uncertain to a certain extent,so the probabilistic analysis method of seismic hazard should be adopted.In consideration of the inhomogeneity of the time,location,and magnitude of future earthquakes and the probabilistic combination of the background of long-term seismic hazard(geology,geophysical field,etc.)and the precursors of earthquake occurrence,a model of probabilistic prediction of seismic hazard in a period of 10 years s proposed.Considering the inhomogeneity of data and earthquake precursors for different regions in China,a simplified model is also proposed in order to satisfy the needs of different regions around the country.A trial in North China is used to discuss the application of the model.The method proposed in this paper can be used in the probabilistic prediction of seismic hazard in a period of 10 years.According to | Gao Mengtan and Wang JianInstitute of Geophysics,SSB,Beijing 100081,China | 1995 | Earthquake Research in China1995，9，4： | 1 |
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