Such studies would certainly unearth more examples of anomalies that might be interpreted as precursors , but establishing a precursory connection would require observations of many earthquakes in the same place 这样的研究将肯定地揭示更多异常的例子，有可能解释为前兆，但是建立一种前兆联系将要求在同一地点观察许多次地震。
In this paper , the effect of velocity pulse in near field ground motions is emphasized and the influence of velocity pulse to acceleration velocity and displacement in earthquake ground motions is analyzed by using simple impact modal 摘要着重介绍了几次地震中出现的近场地震动的速度脉冲特性，并利用简化冲击模型来分析速度脉冲效应对地震动加速度、速度、位移的影响。
Japan is a chain of 1 , 000 islands lying along the eastern rim of the asian continent . it is home to over 123 million people . asia ' s economic superpower is also one of the most seismically active regions of the world , experiencing around 1 , 000 earthquakes a year 因为由千余岛屿组成，故日本也被称为千岛之国，同理这个人口多达1亿2千3百万的拥挤岛国每年约有1000次地震，也是世界上地震频繁的地区之一。
El temblor hizo balancear edificios en la capital yakarta , y se emiti un alerta de tsunami a trav s de buena parte del oc ano ? ndico , pues hay riesgo de fuertes oleajes en indonesia , australia , sri lanka e india , dijeron agencias meteorol gicas 气象局报道到,印度尼西亚首都雅加达的建筑物在此次地震中倒塌不少,印度洋大半部水域将有可能受到海哮的影响.因此,印度尼西亚,澳大利亚,斯里兰卡以及印度的将会受到强浪的袭击
Based on the research of the former scholars , with the background of nonlinear analysis and investigation on structural seismic damage , with the knowledge of capacity spectrum method , the thesis concludes a new method of aseismic analysis method considering damage to the structure during two earthquakes through the push - over method and quasi - static test in the program of idarc ( inelastic damage analysis of reinforced concrete ) 本文的研究内容属于工程结构抗震领域研究范畴。在前人研究的基础上，根据钢筋混凝土非线性分析和结构地震损伤评估的基本知识，应用能力谱方法，利用idarc软件中的push - over方法和拟静力循环往复加载分析方法提出了一种考虑两次地震作用下的建筑物震害预测方法。
The research on attenuation features of intensity in the yunnan region by using intensity isoseismals of 127 earthquakes , and the following three conclusions have been put forward : ( 1 ) average ratio values of long - axis to short - axis of innermost isoseismal in the yunnan region is larger than eastern china and smaller than western china 摘要本文利用127次地震等震线资料，对云南地区地震烈度衰减特徵进行了研究，其结果表明： ( 1 )云南地区地震烈度极震区等震线的长轴、短轴之比的均值，高于我国东部地区而略低于西部地区的平均值，烈度衰减方向性强。
Several important conclusions are gained by the analysis of push - over method and quasi - static reversal load pattern to a reinforced concrete structure : under the two earthquakes , the responses of structure are more serious than the responses under single earthquake , by the conclusion , it is not rationality that structure ' s earthquake damage prediction under single earthquake ; the main - after earthquake action is different from fore - main earthquake action under the same earthquake magnitude combination ; the push - over analysis to the structure is convenient and utility , it also reflects the response and performance of structure under the earthquake , so the method ' s development future is wide . based on the research of the former scholars , some means of structure resisting earthquake are introduced in the last part of this thesis , and the result of earthquake damage prediction for the planning area of quanzhou city is given 通过对一钢筋混凝土结构进行push - over分析与拟静力循环往复加载分析，得到了一些重要结论：在两次地震动作用下，结构物的反应比仅考虑一次地震动作用时的反应要严重的多，从而说明传统上仅仅考虑一次地震动作用的建筑物震害预测是不合理的：即使在同震级组合的两次地震作用下，前震主震型、主震余震型地震对结构物产生的破坏作用也是不尽相同的；对结构物进行静力弹塑性分析的方法( push - over方法)简便实用，并能较准确地反映大震下结构的一般性能和反应，再一次的证明了该方法具有广阔的发展前景；根据前人的研究成果，在本文的最后，简单的介绍了一些结构物抵御多次地震破坏作用的方法，并给出了泉州市规划区内钢筋混凝土框架结构群体震害预测的结果。
The inelastic demand spectra are established according to the new chinese seismic design code for buildings by means of force reduction factor r and ductility factor u , thus , a simple and practical method is established for seismic damage assessment in combination with capacity spectrum method ; the structure ' s push - over curve of second earthquake is gained by cutting the curve of quasi - test reversal load pattern method , thus , the structure ' s cumulate damage level can be computed by the capacity spectrum method too ; the results of an example are compared with the facts , and the validity and simplicity of this method is approved 利用r -关系基于抗震规范弹性反应谱建立了能力谱方法中的需求谱，并将该法和能力谱方法结合，建立了一种简单实用的结构损伤评估方法；对拟静力循环往复加载曲线的截取，得到了第二次地震作用的push - over曲线，从而能够继续使用能力谱方法得到结构物的累积损伤值；通过算例阐述了该法的计算步骤，所得结果符合基本规律，且具有概念明确、简单实用的优点。
Based on the investigation of the underwater and above - water earthquake damage to the piled jetties in the kobe violent earthquakes in 1995 and the miyagiken - oki violent earthquakes in 2003 , japan , the causes of the earthquake damage to the high pile jetties in both earthquakes were analyzed and the mechanism of damage was also discussed with the results of the analysis and calculations 通过对2003年日本宫城县冲地震和1995年阪神大地震中港湾高桩码头的水上和水下震害调查，分析了两次地震中出现的高桩码头震害的原因，并根据计算分析结果探讨了其破坏机制。
6 . 5 earthquake in the west of beijing in 1730 together with the data of drills , electromagnetism and gravity , the qinglongqiao - qiliqu and shahe active faults are identified for the first time . although at present all aspects of the earthquake are not fully known , the authors consider that the two active faults are responsible for the earthquake and the first one plays the leading role 在前人研究1730年北京西郊6 . 5级地震的基础上，综合井孔电磁和重力资料，经分析初步确定了青桥七里渠活动断层和沙河断陷南缘活动断层的存在及其位置规模和基本特征，认为这两条活动断层是此次地震的发震构造，其中青桥七里渠断层在此次地震中起主导作用。
