《世界地震译丛》征稿简则

1 本刊主要译载世界上地震学的新理论、新方法、新技术,要求来稿具有针对性（可引进）、及时性、先进性和权威性,并能用明白畅达的译文,忠实地传达原作的内容。     

《世界地震译丛》征稿简则

1本刊主要译载世界上地震学的新理论、新方法、新技术,要求来稿具有针对性（可引进）、及时性、先进性和权威性,并能用明白畅达的译文,忠实地传达原作的内容。     

《世界地震译丛》征稿简则

1本刊主要译载世界上地震学的新理论、新方法、新技术,要求来稿具有针对性（可引进）、及时性、先进性和权威性,并能用明白畅达的译文,忠实地传达原作的内容。     

《世界地震译丛》征稿简则

1本刊主要译载世界上地震学的新理论、新方法、新技术,要求来稿具有针对性（可引进）、及时性、先进性和权威性,并能用明白畅达的译文,忠实地传达原作的内容。     

《世界地震译丛》征稿简则

1 本刊主要译载世界上地震学的新理论、新方法、新技术,要求来稿具有针对性（可引进）、及时性、先进性和权威性,并能用明白畅达的译文,忠实地传达原作的内容。     

《世界地震译丛》征稿简则

1本刊主要译载世界上地震学的新理论、新方法、新技术,要求来稿具有针对性（可引进）、及时性、先进性和权威性,并能用明白畅达的译文,忠实地传达原作的内容。     

《世界地震译丛》征稿简则

1本刊主要译载世界上地震学的新理论、新方法、新技术,要求来稿具有针对性（可引进）、及时性、先进性和权威性,并能用明白畅达的译文,忠实地传达原作的内容。     

迎接2008年世界地震工程大会研讨会在哈尔滨召开

2005年8月4～6日，“迎接2008年世界地震工程大会研讨会”在哈尔滨隆重举行。     

《世界地震译丛》征稿简则

1本刊主要译载世界上地震学的新理论、新方法、新技术,要求来稿具有针对性（可引进）、及时性、先进性和权威性,并能用明白畅达的译文,忠实地传达原作的内容。 2向本刊投稿,请寄激光样和原文复印件并将以Word文档录载的译文通过本刊电子信箱发送。选题一般可选最近一二年的研究成果。选题可由译者提供,也可由本刊编辑部推荐。欢迎投稿或来函联系。     

2008年世界地震灾害综述

摘要2008年全球地震活动为中等水平,但地震灾情较重。地震死亡和失踪人数总计88223人。伤374171人。经济损失8500亿元。重大地震灾害发生在中国。四川I汶川8级地震是中国自唐山地震以来最严重的震灾。     

《汶川地震灾害地图集》简介

由国家科学技术部、国家测绘局、民政部、国家发展和改革委员会等部门主持编制、成都地图出版社出版的《汶川地震灾害地图集》已正式出版发行。徐冠华、马宗晋、     

汶川地震同震电离层扰动研究

利用中国大陆陆态观测网(CMONOC)的下关、 昆明和庐州GPS台站, 对汶川地震引起的同震电离层扰动(CID)进行研究。 通过对GPS原始观测数据进行处理证实汶川地震存在5个明显的同震电离层扰动(CID)现象。 根据GPS TEC时间序列和走时, 得到在电离层高度CID的水平传播速度为1.1 km/s, 属于震中区地表抬升引起的声波在电离层中传播速度; 同时, 也得到次一级CID传播速度接近0.7 km/s, 认为可能是重力波。 在此基础上, 利用射线追踪模型寻找震中位置发现, 当CID水平传播速度为1000 m/s时, 发震时刻对应的标准偏差能达到最小值19.55 s, 相应的CID起源位置是30.8°N, 103.15°E, 距离实际震中西南方向33.6 km。     

汶川地震后的几点思考

本文认真思考了汶川地震对防震减灾各环节的影响,主要观点有:(1)地震预报很难,但不能不搞。(2)搞好建筑物的抗震设防、避让活断层与山地灾害隐患,或适当治理山地灾害隐患是震前防御减灾的有效途径。(3)汶川地震的紧急救援绩效卓著,但还有提升潜力。     

Spatio-temporal rupture process of the 2008 great Wenchuan earthquake

Focal mechanism and dynamic rupture process of the Wenchaun M _s8.0 earthquake in Sichuan province on 12 May 2008 were obtained by inverting long period seismic data from the Global Seismic Network (GSN), and characteristics of the co-seismic displacement field near the fault were quantitatively analyzed based on the inverted results to investigate the mechanism causing disaster. A finite fault model with given focal mechanism and vertical components of the long period P-waves from 21 stations with evenly azimuthal coverage were adopted in the inversion. From the inverted results as well as aftershock distribution, the causative fault of the great Wenchuan earthquake was confirmed to be a fault of strike 225°/dip 39°/rake 120°, indicating that the earthquake was mainly a thrust event with right-lateral strike-slip component. The released scalar seismic moment was estimated to be about 9.4×10²⁰-2.0×10²¹ Nm, yielding moment magnitude of M _w7.9–8.1. The great Wenchuan earthquake occurred on a fault more than 300 km long, and had a complicated rupture process of about 90 s duration time. The slip distribution was highly inhomogeneous with the average slip of about 2.4 m. Four slip-patches broke the ground surface. Two of them were underneath the regions of Wenchuan-Yingxiu and Beichuan, respectively, with the first being around the hypocenter (rupture initiation point), where the largest slip was about 7.3 m, and the second being underneath Beichuan and extending to Pingwu, where the largest slip was about 5.6 m. The other two slip-patches had smaller sizes, one having the maximum slip of 1.8 m and lying underneath the north of Kangding, and the other having the maximum slip of 0.7 m and lying underneath the northeast of Qingchuan. Average and maximum stress drops over the whole fault plane were estimated to be 18 MPa and 53 MPa, respectively. In addition, the co-seismic displacement field near the fault was analyzed. The results indicate that the features of the co-seismic displacement field were coincident with those of the intensity distribution in the meizoseismal area, implying that the large-scale, large-amplitude and surface-broken thrust dislocation should be responsible for the serious disaster in the near fault area. Supported by the National Basic Research Program of China (Grant No. 2004CB418404-4) and the National Natural Science Foundation of China (Grant Nos. 40574025 and 40874026)     

汶川地震的时空点格局分析

为了探索汶川余震发生的时空规律,采用时空点格局的分析方法,分别对汶川Msge;4.0,Msge;4.5,Msge;5.0的余震数据进行了分析,发现在一定距离尺度和一定时间尺度上余震数据存在时空聚集．在前两组余震序列中这种时空互动在余震相距60km、260小时的范围内明显增强,而后一组余震序列中这种时空互动在余震相距80km、150小时的范围内明显增强．若不考虑余震发生的时间因素,采用完全空间随机化分析方法,得到余震在相距60km范围内聚集性明显增强．上述结果为研究汶川地震发生规律和强余震预测提供了参考．      

Torsional phenomena in 2008 great Wenchuan earthquake

It is well known that there are some torsional damages in earthquakes. In Taibai park, Jiangyou city, Sichuan province, most of the stone statues, which were placed upon the banisters of one zigzag bridge, exhibited different torsional phenomena in 2008 Wenchuan earthquake. This paper introduces the torsional phenomena of all the statues on the zigzag bridge firstly. Then one eccentricity model is established and the equivalent rotational accelerations are calculated in order to analyze the causes of the to...     

地球自转与汶川地震的成因

通过对2008年5月12日四川汶川8级地震与地球自转关系的分析,提出了一个新的地震成因观点,认为地震的根本原因在于地球自转速率的变化。地球岩石圈由大小不同、质量不同的块体组成。比如,大洋块体薄、质量轻,大陆块体厚、质量重。地球自转速率变化时,就会造成这些块体运动的差异性。这种差异运动可能使块体之间发生“追尾”撞击或摩擦,从而引起地震。地震能量来自于块体间撞击或摩擦时损失的动能。     

Perturbation of fluvial sediment fluxes following the 2008 Wenchuan earthquake

Quantifying the removal of co‐seismic landslide material after a large‐magnitude earthquake is central to our understanding of geomorphic recovery from seismic events and the topographic evolution of tectonically active mountain ranges. In order to gain more insight into the fluvial erosion response to co‐seismic landslides, we focus on the sediment fluxes of rivers flowing through the rupture zone of the 2008 M_w 7.9 Wenchuan earthquake in the Longmen Shan of the eastern Tibetan Plateau. Over the post‐seismic period of 2008–2013, we annually collected river sediment samples (0.25–1 mm) at 19 locations and measured the concentration of cosmogenic ¹⁰Be in quartz. When compared with published pre‐earthquake data, the ¹⁰Be concentrations declined dramatically after the earthquake at all sampling sites, but with significant spatial differences in the amplitude of this decrease, and were starting to increase toward pre‐earthquake level in several basins over the 5‐year survey. Our analysis shows that the amplitude of ¹⁰Be decrease is controlled by the amount of landslides directly connected to the river network. Calculations based on ¹⁰Be mixing budgets indicate that the sediment flux of the 0.25–1 mm size fraction increased up to sixfold following the Wenchuan earthquake. Our results also suggest that fluvial erosion became supply limited shortly after the earthquake, and predict that it could take a few years to several decades for fluvial sediment fluxes to go back to pre‐earthquake characteristics, depending on catchment properties. We also estimate that it will take at least decades and possibly up to thousands of years to remove the co‐seismic landslide materials from the catchments in the Longmen Shan. Copyright © 2017 John Wiley & Sons, Ltd.     

汶川8.0级地震的一些启示

文章分析了地震能否预报争议的历史、 背景及其影响, 主张地震预报要知难而进, 要坚持监测、 预报和科研这一中心工作。 地震预报探索就是一部不断在反思和总结中前进的历史。 文中讨论了1975年海城7.3级、 1976年唐山7.8级、 1995年孟连西7.3级和2001年昆仑山口西8.1级等地震的启示、 2008年汶川8.0级地震的意义及科学继承与发展问题。 作者提出了地震大形势的判断、 地震前兆、 观测资料分析与评价等在汶川地震科学总结中要思考的重点问题, 建议做好汶川地震的科学总结、 制定新一代地震预报发展规划、 部署新一代观测台网、 完善地震监测预报工作体制等, 进而开创我国地震工作的新局面。