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地震地磁观测与研究

地震地磁观测与研究

北大核心

CSTPCD

Seismological and Geomagnetic Observation and Research
本刊1980年创刊，由中国地震局地球物理研究所及中国地震分会观测技术专业委员会合办，是从事地震、地磁、空间物理观测和研究的地球物理专业工作者及地震台站管理人员进行工作、科研的重要参考文献，是中国自然科学核心期刊，是中国统计源期刊之一。为国内读者了解地震学创造了方便条件，同时也为科研院所、大专院校研究人员提供一方展示成果、交流信息的园地。本刊为双月刊，16开本。
  • 发文量：3305
  • 被引量：1008
  • H指数：2
  • 开始收录时间：1989,10(1)
  • CNKI综合因子：0.403
  • 维普期刊影响因子： 0.43
  • 万方期刊影响因子：0.41
  • 创刊时间：1980
  • 国内刊号/CN：11-2327/P
    国际刊号/ISSN：1003-3246
  • 发行周期：双月刊
    邮发代号：-
  • 主管单位：中国地震局
    主办单位：中国地震台网中心 中国地震局地球物理研究所 中国地震学会地震观测技术专业委员会
地震地磁观测与研究-联系信息
  • 主编：修济刚
  • 电话：010-58034062/4063/4064
  • 邮箱：dzdc@cea-igp.ac.cn
  • 地址：北京市西城区三里河路56号
  • 邮编：100045
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地震地磁观测与研究 >2023年第4期

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  • 摘要：The system of information publishing, which is the information stored in Oracle database and the real-time information about earthquake by the aid of Google Maps, adopts the tech nique of JSP,Java and JavaScript. By application of Google Maps API. We shall develop in formation publishing system relative to map. Image and the seismic elements, fast and effec tively. It is advantages that paring down expense of data update and avoiding install the soft ware. Merely a Web browser can make it possible to access a good reality information plat form to leader and the public.%采用JSP、Java和JavaScript方法,将Oracle数据库中存储已发生的地震相关信息和实时地震信息,与Google地图结合,进行信息发布技术研究.通过对Google地图API接口的调用,快速、有效的将地图、影像及地震信息发布在网站上,减少数据更新费用,避免软件安装问题,只需IE浏览器就可以为领导和公众提供良好的信息平台.
  • 摘要：应用中国地壳运动观测网络工程获得的1998-2005年4期重力场变化观测资料,结合EGM2008的重力场模型作为区域背景场.对2008年新疆于田Ms7.3地震前的重力场变化特征进行深入分析,通过位场延拓和空间求导等方法,对震前的质源体边界特征进行跟踪和估定.同时,尝试利用一种应用空间相关性加权分析方法给出地震危险性空间概率性分布估计.%his paper based on the gravity variation dataset from the Project of China Crust Movement Measuring Network between 1998-2005, and combined with the gravity field model of EGM 2008 as the regional background field. Research for the features of gravity filed variation before Ms 7. 3 earthquake, Yutian, Xinjiang, according to the seismogenic model, using the potential field continuation and spatial derivation methods, try to estimate the boundary of density anomaly source before earthquake. Meanwhile, in this paper, we proposal a spatial weighted correlation analysis method for obtain probability estimates on earthquake in hazard zone.
  • 摘要：In this papert we depict the basis theory of threshold autoregressive model and establish the self-exciting threshold autoregressive model SETAR(2,4,3) for the time series of the maximal earthquake magnitude occurring in Northeast China. The results show that the model prediction accuracy is higher. It is significant for the investigation of the earthquake activity trend prediction in Northeast China in the future.%叙述门限自回归模型建模的基本原理及步骤,利用东北地区年最大震级序列数据建立门限自同归模型SETAR(2,4,3),并依此对东北地区未来可能发生的最大地震进行预测.结果表明,该模型预测精度较高,其研究结论对东北地区未来地震活动趋势预测具有参考意义.
  • 摘要：为了定量考察地磁相对记录仪器记录到的地磁日变化的准确程度,对我国地磁台网中7个地磁台站2009年度的日变化准确度标定基线值数据的精度和稳定性进行分析,并选取成都、喀什2个台站2009年、2010年的数据,研究标定基线值随地磁日变化的变化情况.结果表明,在整个观测时段,D、H、Z三分量基线值的变化幅度及测量误差很小,在选定时段,基线值的变化与地磁场的日变化无明显相关性.%In order to investigate quantitatively the accuracy of geomagnetic daily variation recorded by FGE magnetometer, we analyze the stability and precision of some groups baseline values continuously recorded one day at seven observatories in 2009. The results show that the standard deviation and variable amplitude of the baseline values are small in D, H and Z components.Then we select the baseline values continuously recorded one day at CDP and KSH observatories in 2009 and 2010, and analyze the influence of absolute measurement intervals on the stability of the baselines.
  • 摘要：The spectrum of quiet-day geoelectric field and the geomagnetic field H component in Xinyi Seismic Sation are comparatively analyzed. The result showed that- the changes of geoelectric field and the magnetic field in Xinyi Seismic Station are closely related. The changes of the NS component of the geolectric field and the H component of magnetic are pseudo synchronous; while the changes of EW component of geoelectric field and the H component of magnetic field are similar, but with reverse shape. Using FFT spectrum analysis, it is shown that there are different correlation between NS and EW component of geoelectric field with the geomagnetic field in dominant period. This result explained one important mechanism of geoelectric field in the Xinyi Seismic Station.%通过对新沂地电场平静时段资料与地磁场资料对比分析,结果显示:新沂地震台地电场变化和变化磁场密切相关,其中NS向的主体变化和地磁场H分量的变化准同步；EW向主体变化虽与地磁场H分量变化有相同之处,但其变化形态与其反向,且不尽相同.运用快速傅里叶变换进行频谱分析,发现:新沂地电场NS向和EW向与地磁场H分量的优势周期存在不同的对应性.此对应结果解释了新沂地电场生成的一个重要机制.
  • 摘要：The daily helium observation data of Wuliying well affected by the effect of the changes of water level at Yanqing Seismic Station. We analyze the working principle and gas collecting method of WGK-1, and alternate the mode of the gas collection instrument-under-water instead above ground, which solve the problem of the effect of the water level and observing environment to the helium observation. So, the instrument records the normal daily-values again, and would offer the insurance for recording the earthquake precursor information. All the above methods could supply the reference value for the other station possessing the helium observation.%延庆地震台五里营井逸出氦气受该井动水位异常变化影响,每日数据扰动大,影响原来的日变形态.对仪器的集气装置进行改造,把地面集气改为水下集气.既解决氦气受水位异常变化的影响问题,减小观测环境变化对氦气观测的影响,提高观测质量,对今后可能记录的地震前兆信息提供保障,对其他有此测项的台站有一定借鉴意义.
  • 摘要：At present, the seismic software in common use is JOPENS which is based on the MySQL databases, and its performance and stability are less than the mainstream-Oracle. On the basis of MetaMatrix, it is presented to how to realize the smooth migration from MySQL to Oracle of JOPENS database in this paper.%由于现使用的测震软件JOPENS系统是建立在MySQL数据库上的,MySQL数据库是面对中小型企业的开源数据库,其性能与稳定性都不及现在主流Oracle.阐述了在MetaMatrix的基础上,实现JOPENS数据库从MySQL到Oracle的平滑迁移.
  • 摘要：The parameters of 51 (M≥4. 7) earthquakes and earthquake disasters in different historical periods in Fujian and adjacent waters are collected and extracted from the historical seismic records and other related information. Basis on the History of strong earthquakes in Fujian Province simple project, validated by the Seismological Society of Chinese historical earthquakes Professional Review Committee in 2005, the collection of earthquake parameters are compared with the records of Earthquake Notes of Fujian Province,the differences are I-dentified and a statistical comparison table is established. The parameters, effect and disaster characteristics of the strong earthquakes are highlighted. Some viewpoint about the recension and usage of history seismic data are put forward. Our results fully recognized and reflected the true historical earthquake activity and seism-disaster effects in the geographical area. It will provide important reference for the excavation and usage of Fujian historical earthquake data, monitoring and prediction earthquake, and seismic safety evaluation of important engineer.%以中国地震学会历史地震专业委员会2005年复核审定的“福建省历史强震简目”为基础,将收集到的强震参数与“福建省志·地震志”的记载进行比较分析,找出差异,建立统计对比表,突出历史大地震的参数、地震影响和地震灾害特征,并就历史地震资料的修订和使用提出看法,充分认识和反映该地理区域真实的历史地震活动和震害影响,为福建地区历史地震资料的发掘使用和地震监测预报、重大工程的地震安全性评价等防震减灾工作提供重要参考.
  • 摘要：Recordings and materials of 232 earthquakes (ML≥2. 0) and 83 blasts happened during 2008 to 2010 in Ningxia were compared and analyzed by MSDP system simplex location method and HYP2000 location method in the earthquake epicenter, focal depth and the residual distribution three aspects. Compared to MSDP system simplex location method, epicenter is nearer to fracture zones when adopting HYP2000 location method, minor earthquake swarms are more concentrated, the distribution of epicenter depth is more practical, and the distribution of residual error is significantly smaller. Hence, HYP2000 location method should be adopted preferentially when near earthquakes happen.%采用MSDP单纯型方法和HYP2000定位方法,对宁夏地区2008-2010年发生的232次ML≥2.0地震和83个爆破资料,从地震震中、震源深度、残差分布3方面进行对比分析.结果显示,采用HYP2000定位方法,震源距断裂带更近,小震群更为集中；震源深度的分布更为符合实际；残差分布明显小于MSDP单纯型定位法.由此建议,近震定位首选HYP2000定位方法.
  • 摘要：采用双差定位法,对2010年1月24日发生在山西河津与万荣交界的4.8级地震序列进行重新定位,结果显示,重新定位后,对于本次地震的发震构造,地震现场考察结果依据等震线图、余震分布特征,对震中区附近的主要活动断裂进行逐个排查分析,最终确定为NW向的西辛封断裂.%Using double-difference location method, the M 4. 0 earthquake sequence occurred at the joint area of Hejin and Wanrong, Shanxi on Jan 24, 2010 is relocated. The results show that, after relocation, the epicenter of main shock of Hejin M 4. 8 (at Latitude 35. 51°N,longitude 110. 73°E,depth 2 km) is located the northern of Ermei platform, close to the macro-epicenter observed by field investigation (at latitude 35. 50°N,longitude 111. 67°E). The after chocks are more concentrated, distributing mainly along NNW direction, few scattering along NEE direction. The residual root mean square deviation of locations after fine relocation is 0. 09 s. The estimate mean error (two times of standard deviation) is 0. 24 km in EW direction, 0. 19 km in NS direction, and 0. 25 km in vertical direction. The causative fault determined finally, based on isoseismal line and the feature of after chock distribution obtained by the field observation, as well as the one by one analysis of main activity faults near epicentral area, is Xixinfeng fault with strike in NW direction
  • 摘要：Based on the observational data of co-seismic step variations of water level at 31 wells at the time of the Wenchuan earthquake, the adjustment variation of co-seismic stress field in North China has been calculated through calculating the observational calibration value of well water level system in paper. The result shows that the pressure stress in Middle China is strengthened, and the stress in East China and South China is decreased, all these will have some referential significance for predicting earthquake in North China.%利用大华北地区在汶川8级地震时有水位阶变的31口并孔的观测资料,通过计算各井水位系统的观测格值,进而估算了震时引起大华北地区应力场的调整变化.研究发现汶川地震后大华北中部地区的压应力得到增强,大华北东部和南部地区则表现为应力降低,对未来大华北地区的地震危险性预测应具有一定参考价值.
  • 摘要：对智利地震在温州地震台的记录特征进行分析,对分析方法做阐述.其结论是:可清晰记录智利地震衍射波PDIF震相；PDIF震相波形“孤立”,起始平缓,周期较大；利用PDIF、PKP、SKKS、SS等明显震相的到时进行大震速报,可提高大震速报的速度和质量.%In this assay, the recording characteristics of earthquakes in Chile recorded by Wenzhou Seismic Station is analyzed, and the analytical method is also introduced in detail. It is found that if the epicentral distance of earthquakes in Chile equals 168 degree, the diffracted waves of PDIF seismic phase can still be recorded clearly. The recorded characteristics of the waves turn out to be single with gentle slope in the beginning and long period. Using the arriving time of obvious seismic phase such as PDIF, PKP,SKKS,SS to report the earthquakes rapidly is helpful to improve speed and quality of rapid reporting.
  • 摘要：As urbanization, industrialization and modernization constantly increasing, the noise source is increasingly higher, especially in the industrial cities. To minimize the noise of the geo-resistivity observation, deep borehole geo-resistivity observation is adapted to reduce the electromagnetic interference. In order to test its anti-interference ability properties, an experiment of geo-resistivity observation in deep borehole was carried out under the organization of Earthquake Administration of Hebei Province.%开展地电阻率深井观测系统对地面已知干扰源的抗干扰能力测试,对测试结果进行量化研究,分析地表电磁干扰对地电深井观测的影响程度,期望为将来地电深井方法的研究提供帮助.
  • 摘要：In this article, the different types of waveform data with different epicentral distance recorded by the ultra wideband JCZ-1 seismometer at Huichang, Jiangxi Province are analyzed. The result shows that, besides the oversize earthquake with epicenter distance no more than 1 000 km, the JCZ-1 seismometer can record the waveform of all kinds of earthquakes with different epicenter distance. The seismogram recorded is clarity with abundant phase information and satisfy the requirement of scientific research.%使用超宽频带JCZ-1型地震计记录到的不同震中距、不同类型的地震波形,通过对这些典型地震波形的分析,得到JCZ-1型地震计除震中距1 000 km的特大地震不能很好记录外,均能够较好记录不同震中距及不同类型的地震波形.
  • 摘要：搜集2008年1月-2010年5月东北地区ML≥4.0地震波形资料,利用邻省多台P波初动资料,采用P波初动解计算方法,求解2008年1月-2010年5月东北地区ML≥4.0地震的震源机制解.结合前期工作成果,研究东北地区应力场方向的总体特征和主压、主张应力轴方向的变化,分析P轴走向随时间的变化与东北地区中强地震发生可能的关系.%Based on the seismic waveform data of ML≥4. 0 earthquakes happened in Northeast China from January 2008 to May 2010, we made an analysis of the focal mechanism of Northeast China with the use of P wave first motion data of neighboring provinces. Then together with the former acquisition, we studied the general characteristics of stress field direction and the variation of stress axis direction. We also analyzed the relationship between P axis variation against time and the possibility of moderately strong earthquakes happening in Northeast China.
  • 摘要：运用双差定位法,对滦县地区2002年1月至2010年8月ML≥2.0地震进行精定位,利用射线追踪方法,对滦县地区的重复地震进行位置归一处理,计算滦县地区重复地震序列经过射线追踪方法校正后得到的P波走时差变化.研究发现,2010年3月6日滦县ML4.7地震前糙甸地震台、兴隆东地震台、蓟县地震台和遵化地震台记录到P波走时差的低值异常变化.%The author relocated the earthquakes ML≥2. 0 from January 2002 to August 2010 which occurred in Luanxian area with the method of double difference, normalized the location of the repeated earthquakes in the study area by using ray tracing method, and calculated the P wave travel time difference change of the repeated earthquakes after corrected with ray trac ing method. The results show that before the Luanxian ML 4. 7 earthquake in the March 6, 2010, the low value abnormal change of P wave travel time difference were found at Caodian, Xinglongdong,Zunhua and Jixian Seismic Stations.
  • 摘要：The algorithms of Delaunay triangulation and its dual structure of the Voronoi diagram in the computation geometry are used to construct the Delaunay triangular network and Voronoi diagram for Tianjin Strong Motion Network. The researches indicate that the Voronoi diagram can intuitively display the distribution density of Tianjin Strong Motion Network, and can provide an exact judgment for the rationality of the isoseismic line.%利用计算图形学中的Delaunay三角剖分算法及其对偶结构的Voronoi图算法,构建天津市强震台网的Delaunay三角网及Voronoi图.结果表明,Voronoi图可以较直观地显示台网的布局疏密,并为等震曲线绘制的合理性提供判断依据.
  • 摘要：In this paper, it is described that how the ability of earthquake monitoring of Shaanxi Seismic Network has been updated by optimizing the layout and increasing the density of the seismic network and by constructing the new GNSS continuous observation system in the project of post-earthquake rehabilitation and reconstruction of Shaanxi seismic network. The new framework of communications network and OSPF routing protocol, used in the system, have not only improved the reliability of communications system of the seismic network, but also remarkably reduced communication costs.%陕西地震监测台网震后恢复重建项目实施过程中,通过优化台网布局和增加台网密度,新建GNSS连续观测系统,提高了地震监测能力；采用的通讯网络新架构以及OSPF路由协议,不仅提升了监测网络通讯系统的可靠性,而且取得降低通讯费用的显著成效.
  • 摘要：序列地震的体波谱振幅相关系数是地震序列震后快速判定的重要依据.体波谱振幅相关系数计算程序是在地震序列发生后,读取其地震波形数据,快速计算其相关系数,绘制滑动相关系数的时序图或聚类图,判定震源机制一致性程度,为地震序列的震后判定提供依据.%The change of the focal mechanism solution is the important basis of the earthquake sequence for post-earthquake judgment. The phenomenon of the focal mechanism solution consistent occurs before many devastating earthquake sequences. Rapidly calculating the focal mechanism solution of earthquakes sequence changes is significant in earthquake prediction research. The correlation coefficients of that the sequential seismic body-wave observes zero frequency spectrums reflect the factorial similarity of earthquake focus radiation pattern, that is, the similarity of focal mechanism solution. Therefore, utilizing the related coefficients of body-wave spectrum amplitude of sequential earthquake is the important basis of the seismic sequence for post-earthquake judgment. After the occurrence of seismic sequence, the calculator program of the correlation coefficient of body-wace spectrum amplitude reads its data of seismic waveform, rapidly calculates the related coefficients, draws the sequence chart or cluster chart of the related coefficients of slide, judges the degree of consistency of focal mechanism, which provides evidence for post-earthquake judgment of seismic sequence.
  • 摘要：针对地震行业网络运行的特殊需求,以目前运行的山西地震信息网络系统为研究平台,对其可能面临的安全风险进行分析,总结归纳网络安全隐患,结合实际运行经验与网络安全技术,给出进一步做好网络安全风险防范的建议,并针对一些常见网络突发事件,介绍山西地震信息网络的应对预案与流程.%Aiming at special requirement for network running of earthquake vocation, Shanxi Earthquake Information Network running at present is acted as study platform, and the safety risk, which Shanxi Earthquake Nnformation Network probably faces is analyzed and some hidden troubles of network safety are summarized and induced. Combining practical running experience and network safety technology, the advice for improving the risk prevention of network safety is presented. Aiming at some common outburst network events, replying plan and procedure of Shanxi Earthquake Information Network are introduced.
  • 摘要：Four earthquakes of Ms>4. 0 occurred continuously in Shanxi area from 2009 to 2010. The parameters and observed data of these four earthquakes, as well as the observing conditions of Linfen Seismic Station are briefly introduced in this paper. The anomalous variances of ground tilt data recorded at Lenfen Seismic Station before the four earthquakes are expressly analyzed, and the earthquake precursor information is extracted from the ground tilt data. The result provides the gist for earthquake prediction by veracious use of the ground tilt data of this station.%2009-2010年山西地区相继发生4次Ms ＞4.0地震,着重对地震前地倾斜资料的异常变化进行分析,汲取地倾斜数字资料中的地震前兆信息,从而为准确利用临汾地震台地倾斜资料,分析预报地震提供依据.
  • 摘要：经过多年水位观测,发现盘锦地区水位有时出现无震时“异常”变化.将辽河油田石油开采数据与本地区水位资料对比分析,结果表明:盘锦地区地下水位受油田开采影响,抽水、注水影响本区观测井水位趋势变化.为今后研究本区水位中、长趋势变化提供借鉴,为准确识别地震异常提供参考意见.%The well of water level observation in Panjin is located in the Liaohe oil field. Through years of water level observation, We found that there are some abnormal changes of the water level data while no earthquake occurred. The author analyzed the relation between the underground water level in Panjin and Liaohe oilfield exploitation. Preliminary results show that:the underground water level is affected by the exploitation of Liaohe oil field, particularly pumping and affusion during mining process affecting the water level trends. The author tried to provide advice about studying the trend changes of water level in future and accurately identify the abnormal change prior to earthquake.
  • 摘要：对于测震观测,大动态和宽频带是当代最主要的技术特征,其关键设备是反馈地震计和24位数据采集器.通过引入调制解调技术来克服由于半导体器件低频噪声和环境温度变化引起的长周期漂移,提高长周期频段数据采集的技术水平.%For the seismic observations, large dynamic and broadband is the most important technical features of the contemporary era. The key device is a feedback seismometer and a 24-bit data acquisition system. Low-frequency noise which is in semiconductor chips has affected the observation in long period, and becomes the important factor in improving the seismic observations. The internal noise of electronic devices (especially on 1// noise, represented by low-frequency noise) is a key indicator which limit sensitivity and accuracy of device. In this paper, the modulation and demodulation technique is adopted to overcome the long-period drift caused by the low frequency noise of semiconductor devices and ambient temperature changes. It can improve the long-period band data acquisition technique.
  • 摘要：Two kinds of BBVS-60 and CMG-3ESPC seismometer were installed in the same place and environment and the data was collected using the same data acquisition unit in time. The noise level and dynamic range were analyzed and the difference of some performance index about the above two kinds of seismometer is identified. The result provides some evidence for earthquake monitoring and correlative research in future.%通过在同一地点、同一环境下安装架设目前新疆测震台网使用较为广泛的BBVS-60型、CMG-3ESPC型地震计,使用同一类型数据采集器进行实时数据采集,对观测数据的噪声水平、动态范围等指标进行对比分析,探寻两类地震计在实际工作中的部分性能指标差异,为今后开展地震监测及相关研究工作提供依据.
  • 摘要：简要介绍陕西省地震编目工作的发展历史,并通过地震编目分析1970年以来陕西省地震的分布情况.结果显示,省内地震主要分布在陕西关中及陕南地区；随着煤矿的开采,近几年陕北地区矿震数量呈现增加陕西态势.%In this article, the developing history of earthquake catalog of Shaanxi Province is introduced in brief. The distribution of earthquakes in Shaanxi Province since 1970 is analyzed through the earthquake catalog in detail. The results show that earthquakes in Shaanxi are mainly distributed in the central and southern region of Shaanxi Province, and the number of shock bumps in the northern region of Shaanxi Province tends to increase with the process of coal-mining.
  • 摘要：With the construction and development of digital seismological-observation system and information service system based on network platform, higher requirement was proposed for earthquake data share. Focusing on the earthquake data share project, based on seismological zoning working system, study of the earthquake data dynamic convergence method which can save earthquake data completely and accurately without disturb its output and process, and the Oracle database designing and constructing scheme for the foundation of data share was discussed.%针对地震科学数据共享工程,面向地震系统工作机制,讨论存数据生产、处理以及保存为不同单位的情况下,如何能够在不影响数据的产出与处理过程而进行数据完整准确保存的动态汇聚方法,以及作为数据共享支撑的基于 Oracle的数据库的设计与建设方式.
  • 摘要：利用宁夏及邻区的数字测震资料,选取2009年5月至2010年10月间的31个M2.7-ML4.9地震事件的波形记录,以Brune提出的震源谱为平方模型基础,通过消除观测谱中的几何扩散、非弹性衰减、场地响应、仪器响应等影响因素,得到这些地震的震源谱,根据Brune的圆盘震源模型计算并研究地震矩、矩震级、地震应力降、震源尺度等震源参数及关系.结果表明,31个地震的lgM0、Mw与ML具有较好的线性相关性.%In this paper, 31 seismic events of ML 2. 7-ML 4. 9 in Ningxia region and borders, which occurred from May, 2009 to Oct, 2010 were studied. Based on the source displacement spectrum of the omega-squared mode, removed the effects of instrument, attenuation and site from the observed spectra, we get the source spectra of these earthquakes. According to Brune's model, the source parameters such as the seismic moment Mo, Mw, stress drop △δ and source radius are calculated. We also analyzed the relationship between the source parameters. The result shows that there is a good relation among the lg Mo ,MW and ML of the 31 events.
  • 摘要：Based on ML≥1.0 earthquakes recorded by Fujian Seismic Network, we conducted a statistical analysis on the velocity magnitudes and simulated magnitude deviation. The magnitude deviation between two types of magnitudes and correlation coefficient are primarily gotten. We also analyze the causation to magnitude discrepancy forming. This result is useful as a reference for magnitude correction of Fujian Seismic Networks.%选用福建地震台网“十五”观测系统运行以来记录的ML≥1.0地震资料,对测定的速度震级和仿真震级进行了震级偏差统计分析,初步得出两种震级偏差值及相关系数,并分析了震级差异形成原因,为福建地震台网震级的测定提供参考.
  • 摘要：The observation model for inter-regional interaction is established based on sharing the deformation data. The model can be used for affirming the unusual scope before the earthquake in gestation status. Through our analysis of the unusual reaction against two earthquakes that happened nearby Rudong two times on the July 9th, 2010, it is proved that few sets of connected tilt instruments can monitor the area of the unusual scope before the earthquake in gestation status. Furthermore, it will provide more center position information for earthquake forecast.%基于形变数据共享,建立跨区域联动观测模型,可在孕震异常发生时确认异常范围.通过2010年7月9日两次如东近海地震前异常分析,结果表明,多套以上倾斜联动观测能监测到孕震异常的发生区域,从而为震前预报确认震中提供更多的方位信息.

    地震地磁观测与研究的期刊信息

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