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| 南北地震带强震主体活动区现象及未来趋势分析 | |
| 引用本文： | 姚玉霞,王建荣,马凤珍,马海霞.南北地震带强震主体活动区现象及未来趋势分析[J].地震地磁观测与研究,2012,33(3):37-40. |
| 作者姓名： | 姚玉霞 王建荣 马凤珍 马海霞 |
| 作者单位： | 1. 中国甘肃744000 平凉中心地震台 2. 中国甘肃741020 天水市地震局 3. 中国甘肃741025 甘肃有色地质勘查局天水总队 |
| 摘 要： | 通过分析我国南北地震带（以下简称南北带）有仪器记录以来发生的大震后，发现存在约10年主体大震活动区，并自北而南有4次转移图像；同时对汶川8级大震前后的震情活动进行分析，认为未来10年南北带北段及以西地区将进入活跃期，很有可能发生多次7级以上地震，但也可能南移；未来几年四川地区可能再次发生大震，甘肃东南部地区有可能发生6级以上地震。 |
| 关 键 词： | 汶川8级地震 主体大震再次活跃 南北带地震迁移呼应 |
Phenomenon of main strong activity area in North-South seismic belt and the future trend |
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| Yao Yuxia , Wang Jianrong , Ma Fengzhen , Ma Haixia.Phenomenon of main strong activity area in North-South seismic belt and the future trend[J].Seismological and Geomagnetic Observation and Research,2012,33(3):37-40. | |
| Authors: | Yao Yuxia Wang Jianrong Ma Fengzhen Ma Haixia |
| Institution: | 1) Pingliang Seismic Station, Gansu Province 744000, China 2) Earthquake Administration of Tianshui County, Gansu Province 741200, China 3) The Colored Geology Exploring Rureau of Gansu Province, Tianshui Team C-ansu Province 741025, China |
| Abstract: | By analyzing the strong earthquakes in North-South seismic belt of China （hereinafter referred to as the North-South zone） since the reliable instrumental records available, it was found that there is a main activity area of about 10 years, and four times of transforming images from north to south. Mean while, the analysis on Wenchuan M 8 earthquake suggests that a active seismic period will develop in the nortern ssegment of North and South zone and its weste area in further l0 years, earthquakes with magnitude 7 may occure, or migrate to south. The analysis also suggests that strong earthquakes may again hit Sichuan area, or earthquakes with magnitude more than 7 oeeure in southeast of Gansu. |
| Keywords: | post of the Wenchuan M 8 earthquake act main earthquake ae again North South migration of echo zone earthquakes |
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