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首页> 外文期刊>Journal of Volcanology and seismology >The Genesis of Seismic Activity on Faults in Central Asia in Real Time and its Variations
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The Genesis of Seismic Activity on Faults in Central Asia in Real Time and its Variations

机译：实时地震活动对中亚故障的起源及其变化

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We used the Digital Faults geoinformation system that we developed to propose an algorithm for quantitative estimation of seismic activity on faults. The resulting technique was used to study the spatiot-emporal patterns in the present-day activity of faults in Central Asia. Fault activity was found to vary at frequencies of a few years and cannot be explained by changes in the regional stress fields. We studied the tendency of seismic events to be localized to areas of dynamic influence due to faults. The active faults were grouped by the criteria of seismicity organization in the influence areas of these faults. It was shown that fault activity and its comparatively high frequency on real time scales are caused by strain waves, which may be generated by interplate and interblock movements in the brittle lithosphere. Judging by the speed of strain waves, the active faults are classified into groups that differ in their geological and geophysical parameters. They can be used to estimate the directions of strain wave fronts and to identify areas of dominant fault activation over intervals of real (geologically speaking) time. We give a map showing active faults in Central Asia, plots of a quantitative index of their seismic activity, and the directivity vectors of strain waves that excite fault activity. The methods we developed for classifying active faults by the quantitative index of seismic activity and for determining the vectors of strain waves that excite fault activity are all tools that significantly expand our possibilities when developing tectonophysical models of the seismic process in earthquake-generating zones of the lithosphere and open new methods for attacking problems in intermediate-term earthquake prediction.
机译：我们使用了数字故障地理信息系统，我们开发了一种提出一种算法，用于定量估计地震活动对断层的算法。由此产生的技术用于研究中亚故障当前活性的热力仿活力。发现故障活动在几年的频率下变化，并且无法通过区域压力领域的变化来解释。我们研究了因故障而定位地震事件的趋势。主动故障被这些故障影响区域的地震性组织的标准分组。结果表明，在实时尺度上的故障活动和其相对高的频率是由应变波引起的，这可以由脆性岩石圈中的仪表板和互连运动产生。通过应变波的速度来判断，活性断层分为其地质和地球物理参数不同的组。它们可用于估计应变波前沿的方向，并在真实（地质上讲）时间的间隔内识别主导故障激活的区域。我们在中亚显示一张地图，显示其地震活动的定量指数的曲线，以及激发故障活动的应变波的方向性载体。通过地震活动定量指数和用于确定激发故障活动的应变波的载体的定量指数，我们开发了用于分类活性故障的方法是所有工具，这些工具都是显着扩大我们在发生地震生成区域中地震过程的构造模型时显着扩大了我们的可能性。岩石圈和开放新方法攻击中期地震预测中的问题。

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