很多地震发生在活动断层上。
活动断层调查是城市地质的主要课题之一。
Active fault exploring is one primary subjects of city geological working.
发震断层均为各活动地块内的主要活动断层。
The most of earthquakes occurred at main active faults in each active block.
总结了活动断层和地震活动的几条经验性规律。
At the end the paper summarized several empirical rules with regard to active fault and earthquake activity.
“我们当然已经指出了这些活动断层的潜能，”埃利斯说。
"We had certainly identified the potential of these active faults," Ellis said.
大部分活动断层属左旋斜滑断层，部分活动断层为左旋走滑断层。
Most of the active faults are left-lateral oblique-slip ones and part of them are left-lateral strike-slip ones.
收集和归纳了活动断层周期性破裂(高速)变形的宏观和微观证据。
The macroscopic and microscopic evidences of periodical stick slip deformation in an active fault were collected and analyzed.
断层上断点埋深是隐伏活动断层地震危险性评价中的一个重要参数。
Buried depth of fault up-breakpoint is a important parameter in earthquake risk estimate of buried active fault.
活动断层是诱发地震的主要原因，也是破坏城市建筑设施的主要因素。
Active fault is one of the main causes for breakout of earthquake and one of the main factors for destruction of buildings in cities.
在地震安全性评价和工程场地勘探中，探明活动断层是一项必做的工作；
The detecting active faults is necessary for estimation of safety affected by possible earthquake and for architectural engineering.
地震活动断层分段在核电工程选址及其地震危险性评价中具有重要的意义。
The segmentation of seismo-active fault has become one of the basic methods in the nuclear power plant siting and the seismic risk analysis.
由于地震活动的危害，国内外目前对穿过活动断层区埋地管道的设计均十分重视。
Because of the hazards made by seismic activity, at present more attention has been paid to the design of buried pipelines passing through active fault zone both at home and abroad.
本文首先运用卫星影像，对临汾—运城盆地中主要活动断层的平面展布状况进行了解译。
In this paper, at first, the plane distribution of main active faults in the Basin of Linfen-Yuncheng are interpreted by satellite imagery.
应用城区的高分辨率勘探采集技术，对潍坊城区实施城市地震活动断层的二维精确探测。
The active faults of Weifang city were detected through applying the 2-dimension high-resolution seismic acquisition technique.
利用JM—3型数字金膜测汞仪对渭河盆地活动断层进行壤中气汞测量，取得了初步结果。
The primary result of measurment for gaseous mercury in soil on active faults in Weihe basin is obtained with JM-3 digital gold-film mercury meter.
因此，对活动断层进行更多、更深入的探测和研究，对地震预报和其它防震减灾工作是十分必要和有益的。
So it is very important and helpful for earthquake forecasting and damages reduction to make more deeply probing and studying of active faults.
详细的卫星图像分析和野外调查表明活动断层(开都河断层带)主要分布在盆地的南缘，具典型的走滑断层特征。
Detailed analyses of satellite images and field investigation have revealed that the active Kaidu River fault zone on the southern margin of the basin is a strike-slip fault zone.
主要活动断层和活动断块分别控制上列滑坡带和滑坡区的分布，其活动特征、断距和长度大小分别决定了沿线多数滑坡的分布规律、发育程度和规模大小。
These landslide belts and districts are mainly controlled by the active faults and blocks in Weihe rift valley at most points, such as the distribution, the scale and the development degree.
后两种来源局限于少数区域，在这些区域，地表水通过地下断层或断裂往下渗透，从而接触到被近期的熔岩活动加热的深层岩石。
The latter two sources are limited to those few areas where surface water seeps down through underground faults or fractures to reach deep rocks heated by the recent activity of molten rock material.
科学家们将地震活动位置定位在圣安德烈亚斯断层沿线。
The scientists positioned the seismic activity as being along the San Andreas fault.
在大型逆冲断层活动中，所有的压力都会释放，且会造成一些世上最强烈的地震。
During a megathrust event, all of that stress releases and some of the world's most powerful earthquakes occur.
到目前为止，也还没有哪门科学可以精确预测断层和火山的活动规律。
There is not yet even a science for predicting when faults and volcanoes will let loose.
所谓的“火焰圈”是一个大型地质断层，形成于太平洋板块和其他版块交界处，由于地质活动频繁，常导致地震和火山。
The Ring of Fire is a chain of large faults associated with the Pacific plate’s interaction with surrounding plates, which can produce earthquakes and volcanoes.
智利断层活动产生的地震波环绕地球数圈之后又袭击了加利福尼亚，触发了加利福尼亚中部的微震。
The seismic waves released during the Chilean fault movement traveled around the world several times and triggered microquakes in central California.
他说：“当你改变了断裂层本身的力学状态的以后，就有可能导致断层开始活动并加剧其引发地震的可能性。”
"When you alter the fault line's mechanical state," he says, "it can cause fault activity to intensify and induce earthquakes."
奥罗维尔坝是美国最大的土坝，20世纪50年代建在一个活动频繁的断层带上，1968年开始蓄水。
The largest earthen dam in the U.S., it was constructed on an active fault line in the 1950s and filled in 1968.
对活断层，线状区和近代火山活动都重新作了研究。
Active faults and lineaments, and recent volcanic activity were re-examined.
北东东向和北北东向断层带形成较早且长期活动，控制了盆地的形成；
NEE and NNE fault belts controlling the formation of the basin had developed well and early and had acted for a long time.
北东东向和北北东向断层带形成较早且长期活动，控制了盆地的形成；
NEE and NNE fault belts controlling the formation of the basin had developed well and early and had acted for a long time.
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