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1.
Catalogueofearthquakes(June-August,1994)Pei-ShanCHEN(陈培善)(InstduteofGeophysicsr,StateSedmologicalBureau,Beijing100081,China)I...  相似文献   

2.
Catalogueofearthquakes(December,1994-February,1995)Pei-ShanCHEN(陈培善)(InstituteofGeophysics,StateSeismologicalBureau,Beijing10...  相似文献   

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Catalogueofearthquakes(June-August,1993)Pei-ShanCHEN(陈培善)(InstituteofGeophysics,StateSeismologicalBureau,Beijing100081,China)...  相似文献   

4.
Catalogueofearthquakes(September-November,1994)陈培善Pei-ShanCHEN(InstituteofGeophysics,StateSeismologicalBureau,Beijing100081,C...  相似文献   

5.
Catalogueofearthquakes(March-May,1995)Pei-ShanCHEN(陈培善)(InstituteofGeophysics,StateSeismologicalBureau,Beijing100081,China)Il...  相似文献   

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Catalogue of earthquakes (September-November,1993)(陈培善)Catalogueofearthquakes(September-November,1993)¥Pei-ShanCHEN(Institute...  相似文献   

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Based on studying the ontogenetic development of Calceola sandalina in the Early Devonian Yukiang Formation from Guangxi Zhuang Autonomous Region, South China, it is for the first time to issue the evidence indicating the existence of sexual dimorphism in Calceola sandalina. The new discovery will add important data on sexual dimorphism throughout the non-colonial fossil metazoan, and it also may throw lights on studying the taxonomy and phylogeny of Calceola sandalina and its relevant taxa.  相似文献   

9.
正地震烈度(Intensity),是一个直接关乎民生的参数。烈度调查,揭示了地表和建筑破坏的程度;烈度速报(又称震动图,ShakeMap),给出了地震动的强弱分布;烈度区划(国外称"地震危险性图",Seismic Hazard Map),为建筑的抗震设防提供了基础依据。在一大堆地震参数里,没有哪个能像它那样与老百姓的关系如此密切,有时甚至会牵动千百万人的行动。道理很明显:地震烈度反映着地震对地表破坏的最终结果(图1)。烈度就是破坏的大  相似文献   

10.
(陈培善)Catalogueofearthquakes(March─May,1994)¥Pei-ShanCHEN(InstituteofGeophysics,StateSeismologicalBureau,Beijing100081,China)I...  相似文献   

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Obituary

Valeriya Alekseevna Troitskaya (November 15, 1917–January 21, 2010)  相似文献   

13.

Chronicle

Mark Naumovich Berdichevskii (April 2, 1923–August 11, 2009)  相似文献   

14.
《Water Resources》2009,36(6):757-759

Chronicle

Martin Gaikovich Khublaryan (March 5, 1935–July 27, 2009)  相似文献   

15.
腾冲火山区地震事件(LP,VT,VE)的识别研究   总被引:2,自引:0,他引:2  
利用腾冲流动数字台网资料,用多种方法对腾冲火山区的地震事件进行识别研究,认为腾冲火山区记录到的地震事件按波形主要分为两类:P波最大振幅明显大于S波及Lg波最大振幅的事件;P波最大振幅小于S波及Lg波最大振幅的事件。其中P波最大振幅明显大于S波及Lg波最大振幅的事件是火山地震的可能性较大。根据多个事件频谱随时间变化扫描图中的频谱特征,认为目前这个地区未记录到长周期事件;但流动台网记录到几组振幅较小,频率较高,振动持续时间双腾冲地震事件的持续时间(一般为6-7s)明显长,达20余秒的颤动事件,波形与Tremor事件曲型图有相似之外,这几个事件是否是Tremor事件,值得深入研究。  相似文献   

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《Water Resources》2011,38(1):134-137

Chronicles

Igor’ Alekseevich Shiklomanov (February 28, 1939–August 22, 2010)  相似文献   

18.
No .1FeatureofGeophysicalFieldandGeologicalTectonicsinOkhotskSea  …………………………………………………………HAOTiao yao YURINeprochnov JIANGWei wei SONGHai bin LIUJian hua LIUYi ke  (1)……………………ComprehensiveStudyofGeologyandGeophysicsofSichuanBasin  ……………………………………………………………JIAN…  相似文献   

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—The Erzincan strike-slip earthquake of March 13, 1992 ruptured a section of the North Anatolian fault (NAF) at the northern margin of the Erzincan basin. The focal depth of about 10 km was less than given by ISC and NEIC. Erzincan and the surrounding villages were considerably damaged. In the Erzincan basin and in the neighbouring mountains a seismic network of ten stations was installed. It was operating continuously from March 21 through June 16, 1992. More than 3,000 aftershocks were recorded of which 505 could be located. The spectral parameters of 394 and the fault-plane solutions of 53 aftershocks were determined. For the given region the frequency dependent coda Q was derived as Q c = 122 f 0.68. The aftershock area increased with time, reflecting the process of stress redistribution. Some events clustered in the immediate vicinity of the town of Erzincan close to the epicentre of the main event and seem to trace the NAF. Their source mechanism is similar to that of the main event (strike slip). About 150 aftershocks clustered in the southeastern part of the Erzincan basin where a concentration of the events in a small volume of 5 × 5 × 3 km3 was observed. The majority of fault-plane solutions available for these aftershocks showed a normal faulting mechanism with an east-west directed extension. Most of the aftershocks southeast of the basin clustered between two lineaments that were mapped by satellite images. The P-wave velocity below the Erzincan basin, derived from travel-time residual analysis, is lower compared to areas NE and SW of the basin. Three-dimen sional stress modelling of the Erzincan region qualitatively explains the occurrence of the aftershocks southeast of the basin. The calculated displacement distribution which exhibits the north-westward motion of the basin and tension at its southeastern margin, caused by the Erzincan earthquake, is in agreement with derived fault-plane solutions.  相似文献   

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