共查询到20条相似文献，搜索用时 61 毫秒
1.
我国是个多地震的国家,为了实现防震减灾十年目标,切实做好地震应急工作,１９９５年１２月国务院颁布了《破坏性地震应急条件》（以下简称《条例》）。文章宣传了贯彻《条例》的意义和目的,并从制定防灾预案,强化政府防震减灾职能作用;加强震情应急研究,做好防震救灾基础工作;加强地震应急宣传,提高社会防震减灾意识等几个方面介绍了山东枣庄市地震办公室在贯彻《条例》时所做的实际工作和经验体会。 相似文献
2.
地震标准化进展综述(之二) 总被引：1，自引：0，他引：1
4 “十五”地震标准化工作设想与发展 地震标准化的实质是它的技术性 ,主要是立足于防震减灾体系中的技术指标。地震标准作为一种技术性规范文件 ,是根据我国防震减灾规划和地震科学技术发展需要 ,按照规定的程序 ,对地震科技成果和实践的先进经验进行总结制定出来的。因此 ,地震标准化一定要以建立防震减灾工作的最佳工作秩序和提高地震科学技术水平为最终目的。为了达到这一目的 ,除了依据《中华人民共和国防震减灾法》来调整防震减灾领域中各个方面的关系外 ,就是要依据一整套行之有效的、科学合理的地震技术法规对地震行业存在共同的、… 相似文献
3.
防震减灾是一项关系国计民生的重要工作，健全和完善地震工作机构是加强防震减灾工作中的一项必要措施。基层地震工作机构是否能够正常开展工作，直接影响防震减灾工作的顺利进行。从近几年的实际情况看，基层地震工作机构的现状还远远不能满足工作需要。 相似文献
4.
5.
本文概述了我国高分辨率遥感技术在地震监测预报、灾害预防和应急救援防震减灾三大业务体系中的应用现状,重点介绍了“高分遥感地震监测与应急应用示范”项目的进展.该项目针对防震减灾业务体系发展的应用需求,在整合地震行业现有技术和资源的基础上,突破了高分辨率对地观测系统卫星遥感数据在地震构造调查、地震监测和地震应急救援等方面应用的关键技术,制定行业应用规范,建设高分遥感地震业务应用示范系统,并开展应用示范.该项目的成功实施,使得我国高分辨率遥感技术在地震中的应用从以往分散的科学研究提升到一个业务化应用的状态,从而能更加有效地服务于防震减灾工作. 相似文献
6.
地震群测群防工作是我国防震减灾工作的重要组成部分,研究和探索新形势下开展地震群测群防工作的新思路和新途径,是地震工作部门当前的一项新任务. 相似文献
7.
防震减灾宣传工作与社会效应的关系探讨 总被引：1，自引：0，他引：1
我国是多地震的国家，也是世界上震灾最严重的国家之一。加强防震减灾宣传工作，是我国减轻地震灾害的前提和极为有效的措施。本文试图通过论述为何要加强防震减灾宣传工作及如何加强防震减灾宣传工作，来探讨达到良好的社会效应的目的。 相似文献
8.
在系统论述南海地震活动特征的基础上，指出在今后数十年内本区正处于地震活跃时期，有可能发生多次强烈地震，这将对广东沿海地区造成严重的震害威胁．提出在制定广东海洋开发计划和在海洋经济工作中，应充分重视防震减灾问题．为此，作者提出了３项建议． 相似文献
9.
我国是一个地震多发、震灾严重的国家。防御与切实减轻地震灾害是我国一项长期而艰巨的任务。江泽民同志多次指出 ,要切实做好防震减灾工作 ,坚持经济建设同减灾一起抓。党和政府历来高度重视防震减灾工作 ,《防震减灾法》的颁布进一步规范了防震减灾工作的三大工作体系。并在震灾预防这一工作体系中明确提出 :“新建、扩建、改建建设工程 ,必须达到抗震设防要求。”“重大建设工程和可能发生严重次生灾害的建设工程 ,必须进行地震安全性评价 ;并根据地震安全性评价结果 ,确定抗震设防要求 ,进行抗震设防。”实践证明 ,依法加强建设工程抗震… 相似文献
10.
近年来,全球不断发生各种自然灾害,其中以地震带给人们的威胁最为严重。新西兰在短期内经历了两次大地震,其建筑物的破坏、次生灾害的严重程度、人员伤亡程度及损失等等却是比较轻微的,这依赖于新西兰政府对防震减灾工作的重视以及民众危机意识的提升。介绍了新西兰城市的防震减灾体系概况,提出了我国城市在防震减灾方面应该加强的几项工作。 相似文献
11.
Geomagnetism and Aeronomy - The evolution of the magnetic configuration in the solar corona is studied. The curvature of the K-corona helmets obtained from an analytical approximation of the... 相似文献
12.
D. M. Pechersky A. A. Lyubushin Z. V. Sharonova 《Izvestiya Physics of the Solid Earth》2010,46(7):613-623
The data on geomagnetic reversals are compared with the changes in the organic world and with the lower-mantle plumes. The
times of the formation of plumes and the times of their appearance on the Earth’s surface relate to the intervals characterized
by the different frequencies of geomagnetic reversals, i.e., there is no interrelation between the formation of plumes and
the frequency of the changes in the geomagnetic field polarity. At the same time, a certain synchronism is observed between
the frequency of the geomagnetic reversals and the boundaries of the biostratigraphic ages, i.e., the changes in the organic
world in the long-period range. A hypothesis is proposed, which explains the change in the sign of the geomagnetic field by
the combined effect of the irregular rotation of the internal core relative to the mantle and the changes in the slope angle
of the axis of the Earth’s rotation, which, in turn, results in synchronous events on the Earth’s surface: the rates of changes
in the organic world. 相似文献
13.
Yu. F. Moroz T. A. Moroz V. A. Loginov A. G. Nurmukhamedov D. A. Alekseev 《Izvestiya Physics of the Solid Earth》2016,52(1):29-44
The results of the magnetotelluric (MT) soundings before and after an earthquake are analyzed. The interpretation is based on the longitudinal and transverse MT curves (along and across the strike of the main tectonic elements, respectively). The MT curves are distorted by the ρ- and coast effect. The distortions due to the coast effect are estimated by the testing three-dimensional (3D) model. It is established that the coast effect distortion at the periods up to 1000 s is small and can be disregarded. The divergence of the longitudinal and transverse MT curves, which points to the presence of the deep faults, is thoroughly studied. The inversion of the MTsounding curves is carried out by the REBOCC program of the numerical two-dimensional modeling. This program implements the procedures of elimination of the ρ-effect and the joint inversion of the longitudinal and transverse MT sounding curves. The obtained geoelectrical cross sections provide an insight into the structure of electrical conductivity of the lithosphere before and after the earthquake. The more intense variations in the electric conductivity are observed in the zone of the deep faults. These variations are related to the changes in the porosity and saturation of the rocks by the highly mineralized fluids. 相似文献
14.
The idea of predicting earthquakes by continuously monitoring temporal variations in the tidal response of the medium was suggested by Beaumont and Berger in 1974. However, it became possible to implement the idea only recently. This possibility has arisen due to the deployment of Global Seismic Network (GSN), which collects the data on tidal tilts and gravity in the epicenters of strong earthquakes before and after the strongest events. In this paper, we present the results of model analytical and numerical calculations of the elastic displacements of the Earth??s surface caused by the earthquakes and their preparatory processes. The analytical calculations are limited to the model of a uniform elastic halfspace; the numerical calculations, in addition to this model, also cover the models with radially heterogeneous distributions of elastic moduli in the crust and in the upper mantle, which are determined by the PREM model. We describe the results of modeling temporal variations in the tidal response of the medium in the vicinity of the source of a catastrophic earthquake. The model of seismic source is specified by the length and the orientations of the fault plane and by the value of the discontinuity in the tangential component of the displacement vector on the opposite sides of the fault. The model is based on the GPS data on the horizontal and vertical displacements of the Earth??s surface. We suggest the method for determining temporal changes in the tidal response of the medium in the seismically active regions. This method improves the sensitivity and time resolution of the standard techniques of sliding-window analysis by more than an order of magnitude. The comparative analysis of temporal variations in the tidal response of the medium in the zones of the magnitude 9 earthquake in Japan (March 9, 2011) illustrates the described approach. 相似文献
15.
The idea of predicting earthquakes by continuously monitoring temporal variations in the tidal response of the medium was suggested by Beaumont and Berger in 1974. However, it became possible to implement the idea only recently. This possibility has arisen due to the deployment of Global Seismic Network (GSN), which collects the data on tidal tilts and gravity in the epicenters of strong earthquakes before and after the strongest events. In this paper, we present the results of model analytical and numerical calculations of the elastic displacements of the Earth’s surface caused by the earthquakes and their preparatory processes. The analytical calculations are limited to the model of a uniform elastic halfspace; the numerical calculations, in addition to this model, also cover the models with radially heterogeneous distributions of elastic moduli in the crust and in the upper mantle, which are determined by the PREM model. We describe the results of modeling temporal variations in the tidal response of the medium in the vicinity of the source of a catastrophic earthquake. The model of seismic source is specified by the length and the orientations of the fault plane and by the value of the discontinuity in the tangential component of the displacement vector on the opposite sides of the fault. The model is based on the GPS data on the horizontal and vertical displacements of the Earth’s surface. We suggest the method for determining temporal changes in the tidal response of the medium in the seismically active regions. This method improves the sensitivity and time resolution of the standard techniques of sliding-window analysis by more than an order of magnitude. The comparative analysis of temporal variations in the tidal response of the medium in the zones of the magnitude 9 earthquake in Japan (March 9, 2011) illustrates the described approach.
相似文献16.
17.
Kapralova V. N. Chesnokova I. V. Makarycheva E. M. Sergeev D. O. 《Water Resources》2019,46(2):S81-S86
Water Resources - The dynamics of the talik zones, associated both with the internal cyclical nature of their development and with climate changes, leads to temporary differences in the volume of... 相似文献
18.
The developed dynamic model of the main geomagnetic field (MGF) includes the sources of three levels, which have existed and continuously changed during the 100-year period. The spatial-temporal dynamics of the secular variations in MGF has been considered based on this model. It has been indicated that, at different times, the formation of anomalies (located in similar regions) depended on the total dynamics of different combinations of sources, including a change in the parameters of the dipoles of the secondorder smallness. Anomalies generated by the dynamics of the dipoles of the third-order smallness do not evidently manifest themselves in the total secular variations but are responsible for the specific shapes of isodynamic lines. Based on the stability and continuity of the constructed model, the conclusion is made that long-living turbulent flows of different scales can exist in the liquid core. 相似文献
19.
Yu. F. Kopnichev I. N. Sokolova K. N. Sokolov 《Izvestiya Physics of the Solid Earth》2013,49(6):786-795
The characteristics of the attenuation field of short-period shear waves in the region of Nevada nuclear test site (NNTS) are studied. The seismograms of underground nuclear explosions (UNEs) and earthquakes recorded by three seismic stations in 1975–2012 at the epicentral distances of up to 1000 km are processed by the methods based on the analysis of the amplitude ratios of Sn to Pn and Lg to Pg waves, as well as the S-coda envelopes for close events. It is shown that the structure of the attenuation field in the Earth’s crust and upper mantle in the NNTS region experienced significant temporal variations during the interval of nuclear operations. The strongest variations were associated with UNEs conducted in the Pahute Mesa area, which held about two-thirds of the most intense explosions. Our data indicate that temporal variations in the structure of the attenuation field are related to the migration of deep fluids. A comparison of the general characteristics of the attenuation field in the regions of the three large nuclear test sites is presented. 相似文献
20.
为查明商丘市南部发育的2条断层——路河断层与商丘南断层的深部构造背景，在商丘市南部路河附近布设一条大地电磁测深测线，采用远参考数据观测与处理技术，获得地下电性结构，并对探测剖面深度5.5 km以上的电性剖面与地质剖面进行分析。结果表明，商丘南部的2条断层为倾向相对的正断层，南支规模较小，北支略大，均错断太古界，有向深部汇聚到主断裂的趋势，在太康隆起北部形成小型地堑。本研究结果可为商丘南部地震构造背景的相关研究提供参考。 相似文献