|
|||||
|
|
| 2013年岷县漳县6.6级地震前地震b值异常特征研究 | |
| 引用本文： | 冯建刚,张辉,杨萍.2013年岷县漳县6.6级地震前地震b值异常特征研究[J].地震,2016,36(1):32-37. |
| 作者姓名： | 冯建刚 张辉 杨萍 |
| 作者单位： | 1.中国地震局兰州地震研究所, 甘肃 兰州 730000; 2.新疆维吾尔自治区地震局, 新疆 乌鲁木齐 830011 |
| 基金项目： | 中国地震局地震科技星火计划攻关项目(XH14049、 XH15042), 甘肃省科技计划(145RJZA186), 国家自然科学基金项目(41304048)、 地震监测预报专项(20160107)等项目联合资助 |
| 摘 要： | 本文利用1990年以来的甘肃测震台网资料, 计算获得2013年岷县漳县6.6级地震前邻区地震b值和Δb值的空间图像。 结果表明, 该6.6级地震发生在甘东南地区显著低b值异常区域的边缘, 且震前邻区地震Δb值异常显著。 从岷县漳县6.6级地震与低b值空间分布关系来看, 该地震的发生并未降低该区域的强震危险性。 |
| 关 键 词： | 地震b值 地震危险性 2013年岷县漳县6.6级地震 |
| 收稿时间： | 2015-09-06 |
Anormalies of b-value Changes beforey the 2013 Minxian-Zhangxian Ms6.6 Earthquake |
|
| FENG Jian-gang,Zhang Hui,YANG Ping.Anormalies of b-value Changes beforey the 2013 Minxian-Zhangxian Ms6.6 Earthquake[J].Earthquake,2016,36(1):32-37. | |
| Authors: | FENG Jian-gang Zhang Hui YANG Ping |
| Institution: | 1. Lanzhou Institute of Seismology, CEA, Gansu Lanzhou 730000, China; 2. Earthquake Administration of Xinjiang Uygur Autonomous Region, Xinjiang Urumqi 830011, China |
| Abstract: | Based on seismic data from the Gansu seismic network since 1990, we calculated b values and Δb values in the epicentral region before the 2013 Minxian-Zhangxian MS6.6 earthquake. The results show that the earthquake occurred at the margin of significantly low b value area in southeastern Gansu, and before earthquake the area around the epicenter has significantly abnormal Δb values. From the earthquake and the spatial distribution of lower b values, this earthquake does not decrease the possibility of dangerous strong earthquake to occur in this region. |
| Keywords: | b value anormaly Earthquake risk The 2013 Minxian-Zhangxian MS6 6 earthquake |
| 本文献已被 万方数据 等数据库收录！ | |
| 点击此处可从《地震》浏览原始摘要信息 | |
| 点击此处可从《地震》下载免费的PDF全文 | |