| 郯庐断裂带周边地震活动图像及未来大震危险性分析 |
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| 引用本文： | 赵根模,吴中海,刘杰.郯庐断裂带周边地震活动图像及未来大震危险性分析[J].地质通报,2016,35(12):2082-2087. |
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| 作者姓名： | 赵根模 吴中海 刘杰 |
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| 作者单位： | 1. 中国地质科学院地质力学研究所, 北京 100081;2. 天津市地震局, 天津 300201;3. 国家测绘地理信息局, 北京 100830 |
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| 基金项目： | 中国地质调查局项目（编号：12120114002101、DD20160268） |
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| 摘 要： | 对比1668年郯城8.5级地震前的地震围空区图像和现代华东地区地震围空区图像,发现二者很相似,都是环绕郯庐断裂带周围呈椭圆形,长轴走向近南北,面积约39×10~4km~2。涵盖河北、河南、山东、江苏、安徽、上海、黄海地区。空区范围、形态、面积、形成时间近似。另外,自2010年以来华东地区地震前兆台网出现大范围异常,集中在郯庐断裂带附近。因此,郯庐带南段的大震危险概率可能正在增大,需引起进一步关注。
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| 关 键 词： | 郯庐断裂带 地震空区 前兆异常 地震危险性 地震中长期预报 |
| 收稿时间： | 2016/5/3 0:00:00 |
| 修稿时间： | 2016/11/8 0:00:00 |
Images of seismic activities around Tanlu faulted zone and an analysis of future great earthquake risk |
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| ZHAO Genmo,WU Zhonghai and LIU Jie.Images of seismic activities around Tanlu faulted zone and an analysis of future great earthquake risk[J].Geologcal Bulletin OF China,2016,35(12):2082-2087. |
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| Authors: | ZHAO Genmo WU Zhonghai and LIU Jie |
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| Institution: | 1. Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China;2. Earthquake Administration of Tianjin Municipality, Tianjin 300201, China;3. National Administration of Surveying, Mapping and Geoinformation, Beijing 100830, China |
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| Abstract: | In this paper, the authors described the seismic gap image before the 1668 Tancheng earthquake and the seismic gap image of modern East China, and found that they are very similar in that they are both around the Tanlu faulted zone, exhibit oval shape and have nearly NS-trending long axis. They occupy an area of about 39×104km2 covering Hebei, Henan, Shandong, Jiangsu, Anhui, Shanghai and the Yellow Sea. They are similar to each other in range, shape, area and formation time of the seismic empty region. In addition, since 2010, earthquake precursory anomaly has appeared in East China, which is located near the Tanlu faulted zone. The great earthquake risk probability along southern Tanlu zone is increasing, which is worthy of attention. |
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| Keywords: | Tancheng-Lujiang fault zone seismic gap precursor anomaly earthquake risk probability medium-long term earthquake prediction |
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