We have summarized the experience for earthquake quick report of xichang telemetry seismic network . we present some thinking to improve error of source parameters in earthquake quick report 摘要总结了多年来西昌遥测地震台网在地震速报处理的技术经验，针对地方遥测台网在地震速报中经常出现的地震参数误差问题提出了改进思路。
Based on the initial motion data of the earthquake sequence with m ( subscript l ) 3 . 0 of 11 times recored by the telemetered seismic network of shanxi since 1980s , the initial motion characteristics of each earthquake sequence had been studied 摘要作者根据80年代以来山西遥测地震台网所记录到的11次3级以上地震序列的初动资料，研究了各个地震序列的初动特徵。
Based on the practice of yunnan digital seismic - network construction , some methods of portserver application in the digital seismic network are provided , including the advantage , disadvantage and the application condition of each method 摘要在云南省数字化地震台网建设的实践基础上，提出了串口服务器在数字化地震台网建设当中的几种典型应用方案，以及各种不同应用方案的优缺点及各自适用情况。
The empirical attenuation relationship for horizontal acceleration response spectrum in reference region is developed by regression , and the relationships for eastern china and western china are obtained by transform method and the data from china . the western north america is set as the reference region 在方法上，采用了经验统计方法回归参考地区的反应谱衰减关系，用转换方法并加入中国数字地震台网记录得到中国东部地区和西部地区的反应谱衰减关系。
How to reduce the influences of the location error of seismic station network and some other factors on the deviation of macroseismic and seismic epicentre , in this rapid service system of earthquake loss estimation , is the important condition of increasing the rationality of loss estimation results 在震害预测快速服务平台中，如何减少由于地震台网定位误差以及其它一些因素所造成实际的宏观震中与定位震中偏离的影响，是提高震害快速估计结果合理性的重要条件。
In this paper , two methods are applied to provide the minimum completeness magnitude distribution of seismic catalog within the studied area for a given period . one is used to calculate the lower threshold of the controlled magnitude by seismic station network , which has paid significant role in the design for building seismic station network in the project named capital region earthquake prevention and hazard mitigation demonstration area . the other is applied to result in the distribution of the lower magnitude threshold that follows the g - r relation by directly analyzing seismic catalog 本论文采用两种方法来给出研究区域一定时期内的地震目录的最小完全性震级的分布，一种方法是通过地震台网来计算控制震级下限的分布，通过本论文的空间处理方法处理的结果在“首都圈防震减灾示范区”工程的地震台网的设计时发挥了重要的实际作用；另一种方法是通过对地震目录的分析直接获取满足g - r关系的震级下限的分布，本论文提出了通过限制不同震级地震参与完全性分析的有效距离的方法，增强了这种方法的合理性。
Abstract : this paper describes the digital seismological observation system of china as a key project of the ninth five - year plan of the china seismlolgical bureau , especially puts the stress on the china digital seismograph network ; the national standard digital seismograph stations ; the satellite information communication network of csb ; the construction scale , design thinking , technological parameters , equipment structure , service function of the china digital seismograph network center , as well as operational process and operation of the china digital seismograph network 文摘:介绍了中国地震局“九五”重点项目中国数字化地震观测系统,特别重点介绍了中国数字化地震台网、国家标准数字化地震台、中国地震局卫星数据通信网、中国数字地震台网中心的建设规模、设计思路、技术参数、设备结构、服务功能,以及中国数字地震台网的运行流程和运行状况。
In the second chapter , the basic theory and method of how to use far - field body - waves to invert for the seismic moment tensor were expatiated systematically . the moment tensor solutions of the march 25 , 1998 , antarctic plate earthquake ( mw = 8 . 1 , iris ) and the june 4 , 2000 , southern sumatra , indonesia , earthquake ( ms = 8 . 0 ) were inverted using teleseismic body waves recorded by long period seismograph stations of the iris global seismic network 并用iris全球地震台网的远场体波资料反演了1998年3月25日南极m _ w8 . 1 (据iris )地震的矩张量和2000年6月4日印度尼西亚苏门答腊南部m _ s8 . 0地震的矩张量。
There are two important questions : one is what is the properties of the seismicity before the earthquake , the other is about the character of the aftershock sequence . the completeness of the catalogue of earthquakes with magnitude over 3 . 0 can be confirmed by different independent tests such as minimum magnitude distribution , frequency - magnitude distribution and the rydelek - sacks test 本文用最低震级分布、震级频度分布和rydelek - sacks检验等方法分析了格尔木单台、青海省地震台网和格尔木台阵记录到的本次地震的余震序列，确认余震的记录对于m _ l3 . 0级以上的地震是完整的。
This paper is concerned with the main functions of the program of fast release for earthquake information of fujian digital seismic network , and its several developing techniques including showing chinese characteristic on english operation system , using computer sending mobile phone short message , and getting the place name of epicenter 摘要介绍福建数字地震台网地震速报信息发布程序的主要功能，及开发程序所涉及的几项技术，这些技术包括：在英文操作系统中显示中文、用计算机发送手机短信和震中地名自动识别等。
