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101.
ＥａｒｔｈｑｕａｋｅｌｏｓｅｓｔｉｍａｔｉｏｎｂｙｕｓｉｎｇＧｒｏｓＤｏｍｅｓｔｉｃＰｒｏｄｕｃｔａｎｄｐｏｐｕｌａｔｉｏｎｄａｔａＱＩ－ＦＵＣＨＥＮ１）（陈棋福）ＹＯＮＧＣＨＥＮ１）（陈禺页）ＬＩＮＧＣＨＥＮ２）（陈凌）１）ＣｅｎｔｅｒｆｏｒＡｎ... 相似文献
102.
Fu Zhengxiang Jiang LixinCenter for Analysis Prediction State Seismological Bureau Beijing China 《中国地震研究》1997,(3)
Research on the large scale spatial heterogeneity of great intraplate shallow earthquakes on the Chinese mainland and adjacent areas discussed in this paper shows that(1)there are four main high seismicity areas:the North China seismic area in the eastern part of China(30°-42°N),the Southeastern Coast seismic area in the eastern part of China(19°-25°N),the North-South seismic area in the western part of China and its adjacent areas(Burma-China-Mongolia),and the Central Asian seismic area in the western part of China and its adjacent areas(Pamir-Tianshan Mountains-Baikal);(2)the four intraplate seismic areas that are approximately perpendicular to those sections of the Eurasia plate boundary that surrounds the Chinese mainland and its adjacent areas,where the Eurasia plate has a strong seismic coupling with the North America-Pacific Ocean-Philippine Sea plate and the India plate; and(3)the large scale spatial heterogeneity of intraplate seismicity in China and its adjacent areas that might be control 相似文献
103.
Huang Deyu Chen Yong Zhu Yuanqing Ji YingCenter for Analysis Prediction SSB Beijing China 'State Seismological Bureau of China Beijing China !Setsmological Bureau of Shanghai Shanghai China 《中国地震研究》1995,(1)
This paper researches TIP before 23 strong earthquakes occurring in the eastern part and the southern and northern zones of the western part of China and their nearby areas in recent decades.The results show that 18 strong earthquakes occurred within the diagnosed TIP.The TIP precaution occupies about 30% of the total space-time domain which we researched,indicating quite good results of intermediate-term prediction of earthquakes.The algorithm CN can thus be used as an intermediate-term prediction method for strong earthquakes. 相似文献
104.
Combining stochastic energy import and deterministic energy loss,this paper does digital modeling for earthquake events by using stochastic cellular automata(CA),and derives energy fractal dimension analysis and multifractal analysis for time sequences of "earthquake" events from this model.The preliminary results show that statistical energy-frequency distribution of many events yields to the classic Gutenberg-Richter relation; different energy initial statuses and propagation rules both influence the output of the model.The b value tightly correlates to model parameters.The complexity of earthquake phenomena essentially may be both stochastic and deterministic. 相似文献
105.
Vulnerability Analysis in Earthquake Loss Estimate 总被引：2，自引：0，他引：2
Chen Yong Chen Qifu and Chen LingCenter for Analysis Prediction China Seismological Bureau Beijing China 《中国地震研究》1998,(4)
The adobes in Costa Rica have almost the same vulnerability as the old civil houses in China, which represent vulnerability in the worst case. On the other hand, the high quality buildings in Costa Rica have the same vulnerability as the reinforced concrete buildings in China due to the adoption of state-of-art techniques in design and construction, which represent the vulnerability of the best case. The macroeconomic vulnerability defined by Chen et al. falls in the middle of the two extreme cases of the inventory studied because the total macroscopic loss is the sum of losses of different types of buildings and facilities. Therefore the macroeconomic vulnerability must be greater than that of the best case and less than that of the worst. The use of macroscopic vulnerability in earthquake loss estimate is easy, simple and feasible. The vulnerability plots are preliminary in nature and should be refined with additional earthquake loss data. 相似文献
106.
张北6.2级地震前的卫星热红外异常 总被引：24，自引：0，他引：24
利用张北地震前 1个月华北北部 (37～ 42°N,1 1 3～ 1 1 9°E)的气象卫星 NOAA/ AVHRR热红外遥感资料 ,提取震前热红外温度异常 ,研究其时空变化的过程和特征 ,并对热红外温度异常与地震的关系进行初步的探讨。结果表明 ,在张北地震前 1 3天沿张家口 -渤海断裂带确有显著的热红外温度异常出现。异常区域呈条带状 ,且与 NW向地质构造一致 ;温度异常的动态变化可大致分为初始、平缓发展和临震加速 3个阶段。将热红外温度异常作为一种临震前兆对强震的预报具有一定的映震效应 相似文献
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108.
Introduction So small is the hypocenter area of strong earthquake, but its formation is controlled by time-space evolution of present-day crustal movement in wider-range area, and related to motion and deformation of active blocks and their boundary faults. Aseismic negative dislocation model presented by Matsuura, et al (1986) is that, the relative motion between blocks driven by present-day crustal movement may be partly locked at the block … 相似文献
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介绍了首都圈32个卫星台站的概况和数据传输的实现方法，阐述了数据采集器参数设定的有关问题，同时给出了不同类型地震仪测震观测技术指标。从原理上探讨了地震仪观测灵敏度和传递函数的测定方法，并对32个卫星传输台站传递函数的测定结果进行了分析。 相似文献
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利用Gabor Daubechies（G? D）小波束域波场分解和传播在空间和方向上的双重局域性，提出了基于G? D小波束域叠前深度偏移进行角度域成像和计算局部散射系数矩阵的方法. 以简单分层模型为例，对不同探测系统的局部散射系数矩阵分布特征进行分析. 分析结果表明，在一定的探测系统几何布局下，由本文方法得到的局部散射系数矩阵能够较真实地反映局部结构的散射(或反射)特性. 通过局部散射系数矩阵进一步外推具有不同速度反差的水平界面随角度变化的反射系数，并估计界面的空间位置和倾角等说明局部散射系数矩阵的潜在应用. 相似文献