共查询到19条相似文献,搜索用时 156 毫秒
1.
地震信息传播平台综合服务分析 总被引:1,自引:1,他引:0
随着网络技术的飞速发展,已经形成了微博、微信等新兴的信息传播方式,因其传播快速和便捷的特点已成为传递信息的重要渠道。本文基于地震信息传播的特点和新兴媒介平台的优势,通过对地震信息资源的分析,提出了建立以地震监测、震害防御、应急救援为主体的地震信息发布构架。同时,借助大众新媒体传播及时快捷、立体多元、全面覆盖的信息平台,可为公众提供丰富多彩的地震信息服务。 相似文献
2.
3.
随着政务微博用户规模及影响力的不断提升,微博作为地震部门传播平台,在地震信息传播方面发挥着巨大的作用。本文在充分考虑地震部门行业特点的基础上,对30个地震官方微博数据进行收集,利用主成分分析法(PCA)归纳出3种地震微博的主要影响指标,即服务力主成分、交互力主成分和创作力主成分,并由此构建出地震官方微博影响力评估指标体系,在此基础上计算得出各地震官方微博的主成分指标得分和影响力综合得分,最后根据得分情况对地震官方微博影响力提出了具可行性的提升策略。 相似文献
4.
地震速报微博发布系统的研发 总被引:1,自引:0,他引:1
微博已成为当今数据发布和传播的最佳自媒体平台,将地震速报信息及时发布到微博上有利于信息的传播,使民众及时获取地震消息,提高地震系统的社会服务能力。地震速报微博发布系统能实时读取EQIM地震台网速报信息并将共享服务系统中的地震数据发送到指定微博账号,同时发布具有中国地震台网中心LOGO标识的震中位置图;在读取EQIM和发送微博时充分考虑到震级、台网代码、震中中文地名等多种过滤条件。该系统已运行近3年时间,运行稳定、可靠,达到了预期的效果,特别是在朝鲜核爆、芦山地震、鲁甸地震等地震事件中及时向社会公众提供了地震速报信息,取得了较好的社会效益。 相似文献
5.
6.
7.
在新媒体时代,由于微博、微信、头条号、网易号等新兴媒体的广泛应用,网络信息的接受者也是信息的发布者,由于网络传播过程当中的匿名性和平等性的特点,在网络传播中人们能够更自如的发言,容易形成一种非理性的舆论,因而短时间内突发事件可能被传播发酵为重大负面舆论事件。因此,在新媒体时代,相关部门只有快速反应,把握好突发事件舆论引导的"第一时间",才可以抢占舆论先机,成为突发事件的"第一时间发声者",才能掌控舆论引导权。 相似文献
8.
9.
震后对网络舆情信息的监控与分析,对于相关部门开展震灾应急救援、掌握救灾动态、稳定民众情绪具有重要意义。本研究基于新浪微博数据,运用网络爬虫技术,获取西藏自治区那曲市比如县6.1级地震震后24小时及震后一周的相关微博及评论;利用Python中文分词组件“jieba”和ROST CM6软件,对数据进行分类、去重、分词等处理,得到结构化的分级、分类数据,并制成震后微博时间序列图、地理分布图、舆情热词词频表、情绪极性统计图等,实现微博舆情数据的可视化。研究结果表明,本次地震事件的微博舆情整体呈现积极情绪,微博活跃程度与当地经济发展程度密切相关。在本次地震舆情传播中,政府部门的舆情引导起到至关重要的作用,舆情传播中的防灾视频传播具有明确的正向引导作用。本研究对于中国西部欠发达少数民族地区的地震舆情分析及引导工作具有借鉴意义。 相似文献
10.
11.
Chen Zhangli 《中国地震研究》2001,15(4):329-345
In the article the author looks back the hard development course and great progress in earth quake science and technology in China during the last near a half of century and expounds the following 3 aspects: (1) The strong desire of the whole society to mitigate seismic disasters and reduce the effect of earthquakes on social-economic live is a great driving force to push forward the development of earthquake science and technology in China; (2) To better ensure people‘ s life and property, sustainable economic development, and social stability is an essential purpose to drive the development of earthquake science and technology in China; and (3) To insist on the dialectical connection of setup of technical system for seismic monitoring with the scientific research of earthquakes and to better handle the relation between crucial task, current scientif ic level, and the feasibility are the important principles to advance the earthquake science and technology in China. Some success and many setbacks in earthquake disaster mitigation consistently enrich our knowledge regarding the complexity of the conditions for earthquake occurrence and the process of earthquake preparation, promote the reconstruction and modernization of technical system for earthquake monitoring, and deepen the scientific research of earthquakes. During the last 5 years, the improvement and modernization of technical system for earthquake monitoring have clearly provided the technical support to study and practice of earthquake prediction and pre caution, give prominence to key problems and broaden the field of scientific research of earth quakes. These have enabled us to get some new recognition of the conditions for earthquake oc currence and process of earthquake preparation, characteristics of seismic disaster, and mecha nism for earthquake generation in China‘s continent. The progress we have made not only en courages us to enhance the effectiveness of earthquake disaster mitigation, but also provides a basis for accelerating further development of earthquake science and technology in China in the new century, especially in the 10th five-year plan. Based on the history reviewed, the author sets forth a general requirement for develop ment of earthquake science and technology in China and brings out 10 aspects to be stressed and strengthened at present and in the future. These are: upgrade and setup of the network of digitized seismic observation; upgrade and setup of the network for observation of seismic pre cursors; setup of the network for observation of strong motion; setup of the laboratories for ex periment on seismic regime; establishment of technical system for seismic information, emer gency command and urgent rescue; research on short-term and imminent earthquake predic tion; research on intermediate- and long-term earthquake prediction; research on attenuation of seismic ground motion, mechanism for seismic disaster, and control on seismic disaster; ba sic research fields related to seismology and geoscience. We expect that these efforts will signifi cantly elevate the level of earthquake science and technology in China to the advanced interna tional level, improve theories, techniques, and methods for earthquake precaution and predic tion, and enhance the effectiveness of earthquake disaster mitigation. 相似文献
12.
INTRODUCTIONItisknownthatChinaisanearthquake pronecountryintheworldandisalsoacountrysufferingmostsevereseismiccalamitiesintheworld .China’sterritoryoccupiesabout 1 1 4oftheglobalconti nentalarea ,whileabout 1 3ofglobalM≥ 7.0continentalearthquakesoccurredinCh… 相似文献
13.
1976年和林格尔6.3级地震前后震兆特征分析 总被引:2,自引:0,他引:2
从时空变化特征、震源参数、地震波谱特征,b值,Vp/Vs,Q值,持续时间衰减比,Ap/As等方面对1976年4月6日和林格尔6.3级地震进行了较为全面的分析,着重分析了地震前后2年左右出现的运动学和动力学变化特征,以提取和林格尔6.3级地震的短临信息,分析后认为此次地震出现的震兆特征与包头6.4级地震,张北6.级地震某些方面有相似处,对探讨分析未来阴山、燕山地震带浅源中强震的孕育过程及提取临震信息,具有参考意义。 相似文献
14.
In this article, we systematically introduce the latest progress of the earthquake early warning (EEW) system in Fujian, China. We focus on the following key technologies and methods: continuous earthquake location and its error evaluation; magnitude estimation; reliability judgment of EEW system information; use of double-parameter principle in EEW system information release threshold; real-time estimation of seismic intensity and available time for target areas; seismic-monitoring network and data sharing platform; EEW system information release and receiving platform; software test platform; and test results statistical analysis. Based on strong ground motion data received in the mainshock of the Wenchuan earthquake, the EEW system developed by the above algorithm is simulated online, and the results show that the system can reduce earthquake hazards effectively. In addition, we analyzed four earthquake cases with magnitude greater than 5.5 processed by our EEW system since the online-testing that was started one year ago, and results indicate that our system can effectively reduce earthquake hazards and have high practical significance. 相似文献
15.
本文依据信息量的定量判定方法,从分析地震地质和前兆因子与强震发生的关系出发,对各种因子所能提供的长期或10年尺度强震危险的信息量作了估计。 相似文献
16.
17.
18.
本文利用七○年至八二年的中、小地震活动资料,结合大华北区域快速破裂过程和特征,分析了该区十几年来强震发生前,中、小地震相对密集的活动特点。指出大华北地区存在一个近似扇形的快速破裂网络。这个网络(最少在目前)既控制着绝大多数的中、小地震活动带,又控制着强震的发震地区。探讨了该区自七○年以来M_S≥6.0级地震前的中、小地震活动异常。强震主要发生在扇形破裂网络的交汇点附近,震前一至十年交汇点附近都有5级左右地震活动或出现相对密集现象,M_L≥2.7级的地震相对频率有较明显的增强。七○年以来共发生8次M_S≥6.0级强震,其中6次有明显的地震活动异常(占75%),2次尚未发现异常活动(占25%)。所有这些对于判断大华北地区的未来强震危险地点及中、短期震情分析具有实用意义。 相似文献
19.
根据2010年4月14日玉树7.1级地震的震源破裂模型及余震目录, 本文计算了玉树地震产生的位移场和库仑破裂应力。 计算结果表明, 玉树地震导致应力变化以破裂带为中心高达正负1000Pa变化, 沿近东西方向应力增加, 巴彦喀喇山主峰断裂、 清水河断裂、 杂孕—楚玛尔河断裂东南段、 称多—曲麻莱—五道梁断裂、 冶多断裂中段, 扎那曲—着晓断裂、 莫云—结多断裂、 杂多—上拉秀断裂西北段处于应力增强区, 冶多断裂中段、 杂多—上拉秀断裂应力增强尤为显著, 高达1000 Pa之多, 应力的增加有利于这些断裂活动性增强。 而沿破裂带方向的断层如甘孜—玉树—风火山断裂带及玉树南—风火山南麓断裂西北段应力减小, 对这些地区后续地震的发生有一定的抑制作用。 相似文献