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.
本文指出了福建微震仪地震台网在地震速报和编目工作中存在的主要问题以及问题产生的可能原因；
The paper pointed out the major problems and their generating reasons in the work of earthquake rapid report and seismic catalogue organizing of Fujian microseismic network.
微震，脉动由自然现象，如风或强海波引起的轻微地球震动。
A faint earth tremor caused by natural phenomena such as winds and strong ocean waves.
本文对门头沟煤矿九龙盆地区人工开采活动调整前后的微震活动的分维结构变化进行了分析。
The fractal dimension of the microseismic activity before and after adjusting the distribution of working face in Jiulongpen region of Mentougou mine is analyzed.
获得微震异常信号的突变时刻及突变时刻所对应的频率成分，是微震监测中亟待解决的关键问题。
To obtain the sudden change time of the unusual microseismic signal and the corresponding frequency composition is a key problem demanding to be solved promptly in microseismic monitoring.
以往基于DSP或其他单片机的微震系统，其资源的有限性很难达到理想的采集效果，并且难以完成先进算法的实现；
Previous microseismic systems based on DSP or single chip can't reach the desired data collection due to its limitation, neither realize the advanced algorithm.
微震监测技术是深部矿床地压监测的重要手段。
Microseismic monitoring technique is a main means of ground pressure monitoring for deep mines.
提出了在利用微震观测资料、构造分析、重现期和地震动衰减估计、以及建立统计模型等方面可以深入研究的内容。
Some topics are proposed for in-depth studies by using microseismic data, tectonic analysis, evaluations of recurrence periods and ground shaking attenuations and statistical models.
微震作为预测预报矿井重大动力灾害的一种区域性的监测手段，同时具有谱成分丰富、频带较宽的特性。
Microseism, as a kind of regional monitoring means, is used to predict and forecast the great dynamic force calamity of the mine.
根据对包括汶川大地震等一些实测资料的分析，并借用断裂力学和断裂物理的概念，可以认为存在一种震前出现的“微破裂波”。
With a recheck of the observing data of Wenchuan and some other earthquakes, also based on the concept of fracture mechanics, it is deemed that there exists a micro-fracture wave before earthquakes.
微震，脉动由自然现象，如风或强海波引起的轻微地球。
A faint earth tremor caused by natural phenomena, such as winds and strong ocean waves.
这说明综合应用微震前兆和遥感前兆来预报地震有助于提高预报的成功率。
This result show that the success rate of earthquake prediction might be increased by using both the microearthquake indication and the remote sensing indication.
这次微震群属于冲击地压型矿震，与煤矿开采及回采工程活动有关，属于偶发的局部应力释放。
The event is ore earthquake of rock burst type related to coal mine exploitation and mining activity, the micro-earthquake swarms belong to occasional local stress releasing.
煤矿冲击矿压、矿震等煤岩动力现象，与岩体的微震事件有着必然联系。
Dynamic mechanical phenomena such as rock bursting in colliery are necessarily related to micro-seism of rock body.
而随机噪声没有统一的规律，它包括环境噪声、测量误差、地面微震等。
Random noises have uniform rules and they comprise of circumstance noise, measurement error and ground microseism.
腾冲火山地热区的水热活动显示强烈，小震微震活动频繁。
In the Tengchong volcano-geothermal region, there are strong surface expressions of hydro-thermal activities and frequent microseismicity.
提出了由微震事件分布推断区段煤柱稳定性的方法。
The authors point out the method of how to decide the stability of coal pillar according to microseismic monitoring results.
山东数字地震台网承担山东地区及附近海域的大震速报和微震监测任务。
The earthquake-monitoring of Shandong digital seismic network undertakes task of large earthquake quick report and the small earthquake monitoring in Shandong and adjoin areas.
兰州大尖山地震台阵的建成，进一步提高了甘肃省兰州市及周边地区微震活动的监测能力。
The monitor capability of micro-seismic activity in Lanzhou city and adjacent area will also be enhanced.
详细介绍微震监测系统的组成和性能，采用人工爆破震源对微震监测系统的定位精度进行3次测试，监测范围内的震源定位误差为3。
Using blasting to locate the accuracy of micro-seismic monitoring system for three tests, it is found that the source location error is the 3.
腾冲火山区的微震活动分布、地震强度、及震源深度特征所表现的现象可能与地下岩浆体活动相关，显示了与火山热物质孕震机理有关的明显特征。
Therefore, the features of distribution of microseisms, magnitude and depth are probably related to the activity of magma body, which show mechanism of hot volcanic matter.
并讨论了微震仪脉冲响应的近似计算，以及震级标度对测定结果的影响。
Finally, a discussion is held on the approximate calculation of the microseismograph's pulse response and the influence of magnitude determination upon the determination result.
采用人工爆破震源对微震监测系统的定位精度进行了3次测试，监测范围内的震源定位误差为3。
Using blasting to locate the accuracy of micro-seismic monitoring system for three tests, it is found that the source location error is the 3.
微震监测和音频电透视结果证明，岩体破裂区和富集水区的存在加速了波的衰减。
Microseismic monitoring, together with the result of audio perspective drawing indicates that fractured and water-charged regions significantly accelerates seismic attenuation.
研究结果为利用岩层运动理论与微震监测相结合的方法预测冲击矿压奠定了基础。
The research achievements establish a foundation for the rock burst forecast method on the basis of the stratum movement theory and micro-seismic observation.
采用人工爆破震源对微震监测系统的定位精度进行了3次测试，监测范围内的震源定位误差为3。
Using blasting to locate the accuracy of micro-seismic monitoring system for three tests, within the scope of monitoring, the source location error is the 3.
在早期预测的基础上，采用微震法对冲击危险区域进行监测。
Based on the early prediction, the micro seismic method was applied to monitor and measure the bumping danger zone.
这一结论对于利用微震监测系统监测预报冲击矿压具有一定的借鉴意义。
The conclusion will generate considerable important directive significance for monitoring and forecasting rockburst catastrophe with MS monitoring system in coal mines.
这些定性和定量的研究结论将为进一步研究微震监测台网布置的优化方案提供理论依据，也可为其他地球物理监测或探测手段提供实测的基础参数。
The results provide an objective theoretical basis for further studying the optimization of seismic monitoring network arrays, which can support other monitoring tools in underground coal mining.
这些定性和定量的研究结论将为进一步研究微震监测台网布置的优化方案提供理论依据，也可为其他地球物理监测或探测手段提供实测的基础参数。
The results provide an objective theoretical basis for further studying the optimization of seismic monitoring network arrays, which can support other monitoring tools in underground coal mining.
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