共查询到20条相似文献,搜索用时 156 毫秒
1.
黄福明 《地震学报(英文版)》1994,(Z1)
PreliminarystudyonthedurationofearthquakeactivityFu-MingHUANG(黄福明)(InstituteofCrustalDynamics,StateSeismologicalBureau,Beijin... 相似文献
2.
KinematicfeaturesoftheseismogenicfaultoftheTangshanearthquakeandtherecurrenceperiodoflargeearthquakesJIELIU1)(刘洁)HUI-ZHENSON... 相似文献
3.
Application of mechanical and statistical models to the study of seismicity of syn-thetic earthquake
《地震学报(英文版)》1998,(4)
Applicationofmechanicalandstatisticalmodelstothestudyofseismicityofsyn-theticearthquakesandthepredictionofnaturalonesYAO-LINS... 相似文献
4.
Thefracturecharacteristicofthe1989Datong-YanggaoearthquakesequenceSi-ChangZHANG(张四昌),Gui-LingDIAO(刁桂苓)andLi-MinYU(于利民)(Sefrmo... 相似文献
5.
Numericalanalysisoftheinteractionofsoil┐structureunderearthquakeloadingGEN-DEZHANG1)(章根德)SHU-CHENGNING2)(宁书成)1)InstituteofMe... 相似文献
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ApplicationofPPclustermethodintheearthquakeswarmanalysisShi-YongZHOU;(周仕勇)Ling-RenZHU;(朱令人)andChuan-LingDENG(邓传玲)(Seismologic... 相似文献
7.
Random field characteristics of earthquake occurrence and test of earthquake occurrence rate 总被引:1,自引:0,他引:1
高孟潭 《地震学报(英文版)》1994,(Z1)
RandomfieldcharacteristicsofearthquakeoccurrenceandtestofearthquakeoccurrencerateMeng-TanGAO(高孟潭)(InstituteofGeophysics,State... 相似文献
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Thenumericalsimulationofthesourcedevel┐opmentoftheTangshanearthquakeZHI-RENNIU(牛志仁)DANG-MINCHEN(陈党民)BING-QIANLI(李炳乾)Seismolo... 相似文献
9.
陈佩燕 《地震学报(英文版)》1997,(2)
Applicationofthevalueofnonlinearparame┐tersHandΔHinstrongearthquakepredic┐tionPEI-YANCHEN(陈佩燕)InstituteofGeophysics,StateSei... 相似文献
10.
高孟潭 《地震学报(英文版)》1995,8(2):259-264
Methodofexpectedearthquakelossesestimationbasedonthefrequencyofseismicsiteintensity高孟潭Meng-TanGAO(InstituteofGeophysics,State... 相似文献
11.
According to the source mechanism of the main shock and the distribution feature of the aftershocks occurring in the southern Taiwan Straits on Sept. 16, 1994, in this paper the authors analysed the source rupture feature of the major earthquake, demonstrated that this seismic sequence possessed the characteristics of a large intraplate earthquake. And according to the seismotectonic background and the historical seismicity in the area, the authors clarified the active characteristics of the seismically active belts along northwestern direction and analysed preliminarily the earthquake circumstance in the southeastern coast of China. 相似文献
12.
According to the source mechanism of the main shock and the distribution feature of the aftershocks occurring in the southern
Taiwan Straits on Sept. 16, 1994, in this paper the authors analysed the source rupture feature of the major earthquake, demonstrated
that this seismic sequence possessed the characteristics of a large intraplate earthquake. And according to the seismotectonic
background and the historical seismicity in the area, the authors clarified the active characteristics of the seismically
active belts along northwestern direction and analysed preliminarily the earthquake circumstance in the southeastern coast
of China. 相似文献
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14.
引潮力对显著地震触发作用与大震关系及在雅江地震预报中的应用 总被引:11,自引:2,他引:9
大地震的孕育和发生是震源区及其附近地壳应变能的积累和快速释放过程。当地震孕育到后期, 震源区及其附近应变能高度积累, 处于极不稳定的临界状态。因此, 地震短临预报方法必须基于临界状态的特点。临界状态的最重要特点是触发因素将起重要作用。固体潮的引潮力是一种重要的触发因素。笔者改进了过去仅用月亮固体潮引潮力的地方平太阴时方法, 而用月亮与太阳整个固体潮引潮力作为触发因素, 显然这样更为科学和合理。研究表明, 大地震前震源区及其附近发生的几次显著地震易受固体潮引潮力某个方位附近触发。并应用这一现象结合其他地震前兆方法成功预报了2001年2月23日四川雅江6. 0级地震。 相似文献
15.
介绍一种能直接从网页获取地震目录的应用软件,实现对任意地震信息网站上的任意地震目录自动下载。该软件向HTTP服务器发送请求获取服务器传回包含数据的网页源文件,最后提取源文件的目录信息,并进行数据格式转换。核心功能主要是实现原来人工操作搜索地震目录,并对接收来的文件进行分析,分离其中的数据部分,以达到自动下载和整理地震目录的目的。 相似文献
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Introduction The 1303 Hongtong earthquake is an important earthquake in the eastern China. There is a lot of information in historical documents about the earthquake and many traces destroyed by the earthquake in the southern Shanxi Province. Many scholars have studied the earthquake from dif-ferent aspects, but mainly limited the definitions of the isoseismal and three factors of the earth-quake. Owing to being limited by the analysis technique, many useful damage information of the earthqu… 相似文献
18.
B. G. Bukchin 《Izvestiya Physics of the Solid Earth》2017,53(2):243-249
The possibility of identifying the fault plane in the case when the source of an earthquake is described in the second-moment-based approximation is analyzed. The commonly occurring type of the earthquake source whose major axis and rupture propagation are directed along the strike axis is analyzed in detail. The possibility of identifying the fault plane of this source depending on the focal mechanisms of the earthquake is explored. The inferred conclusions are verified by the results obtained for two strong earthquakes: the Chilean earthquake that occurred in Maule on February 27, 2010 and the Sumatra offshore earthquake of April 11, 2012. 相似文献
19.
2013年岷漳地震和2014年景谷地震两个地震的矩震级均为MW6.1,但相同等级烈度区域的面积差异显著,前者均明显大于后者.地面震动的强烈程度与震源破裂过程中辐射的地震波高频成分密切相关,作者系统地测定与研究了这两个地震的震源谱和反映其震源特征的能矩比等震源参量.结果表明,虽然岷漳地震和景谷地震释放的地震矩基本相同,分别为1.6×1018Nm和1.8×1018Nm,而且前者还比后者略小些,但其释放的地震波辐射能却差异显著,分别为1.3×1014J和0.6×1014J;因而前者的能矩比(8.1×10-5)是后者能矩比(3.3×10-5)的大约2.5倍.相应地,岷漳地震的视应力和应力降也都明显大于景谷地震的视应力和应力降.此外,这两个地震震源谱结果均显示出其高频趋势均按角频率ω的-2幂次衰减,符合"ω2模式";采用理论震源谱公式计算结果分别约占实际结果的54%和50%,两个地震的地震波辐射能解析解之间的差异依然约2.3倍.震源破裂特征的显著差异导致岷漳地震单位地震矩释放的地震波辐射能更多,即岷漳地震能矩比更大,是导致这两个矩震级均为MW6.1地震的地震烈度差异显著的一个重要原因. 相似文献
20.
On July 25, 1969, anM
s
5.9 earthquake shook the Kwangtung Province near Yangjiang, China. Casualties and extensive damage were reported in the epicentral area. The Yangjiang earthquake occurred within the passive margin located along China's southeast coast. This stable continental setting is seismically one of the most quiet regions of China; historic records indicate this earthquake to have been the first devastating one in the area. A remarkable feature of this earthquake sequence is that its foreshocks and aftershocks are relatively small in terms of number and magnitude despite the relatively large main shock.Waveforms of long-and short-period teleseismicP and long-period teleseismicSH waves have been modeled to estimate the source parameters for this earthquake. The focal mechanism determined is predominately strike-slip with a small normal component (strike=263°, dip=79°, rake=194°) and is in good agreement with observations in the epicentral area regarding dislocation direction of fissures, distribution of aftershocks, and isoseismals. The average seismic moment is 5.15×1024 dyne-cm and the focal depth is estimated to be 9 km. The earthquake is characterized by a rather short source-time function and a high stress drop of approximately 380 bars. The observed pattern of the foreshock-main shock-aftershock sequence is interpreted in terms of the large stress drop associated with the main shock and the material properties at and near the source. TheP-axis orientation lies roughly NW-SE and is consistent with the maximum compressive stress observed along the coast of southeast China. This stress orientation is consistent with the NW subducting Philippine Sea plate and the SE ward push from central China due to the convergence between Indian and Eurasian subcontinents. 相似文献