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| 周口M4.7级地震前的异常研究 | |
| 引用本文： | 冯亚静,邱海涛,郭广猛.周口M4.7级地震前的异常研究[J].南阳师范学院学报,2011,10(3):57-59. |
| 作者姓名： | 冯亚静 邱海涛 郭广猛 |
| 作者单位： | 1. 南阳师范学院环境科学与旅游学院,河南南阳,473061 2. 南阳市地震局,河南南阳,473000 3. 南阳师范学院环境科学与旅游学院,河南南阳,473061;南阳市卫星遥感减灾重点实验室,河南南阳,473061 |
| 摘 要： | 研究了2010年10月24日周口4.7级地震前的电离层总电子浓度变化以及向外长波辐射变化,认为电离层变化异常值出现在6月17日,在河南南部出现一个电离层低值区,向外长波辐射异常值出现在10月22日至23日,表现为震中区附近的向外长波辐射值为全国最高值,同时稳定分布在该区两天时间.研究认为向外长波辐射异常能够比较准确地确定震中位置,与电离层异常相结合,二者能够比较准确地预测震级和震中,但是对于时间的预测还存在有困难. |
| 关 键 词： | 周口 地震 电离层 向外长波辐射 |
Anomaly before Zhoukou M4.7 earthquake |
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| FENG Ya-jing,QIU Hai-tao,GUO Guang-meng.Anomaly before Zhoukou M4.7 earthquake[J].Journal of Nanyang Teachers College,2011,10(3):57-59. | |
| Authors: | FENG Ya-jing QIU Hai-tao GUO Guang-meng |
| Institution: | FENG Ya-jing1,QIU Hai-tao2,GUO Guang-meng1,3(1.School of Environment Science and Tourism,Nanyang Normal University,Nanyang 473061,China,2.Seismic Bureau of Nanyang,Nanyang 473000,3.Nanyang City Key Laboratory of Remote Sensing and Natural Hazards,China) |
| Abstract: | On October 24,2010,a M4.7 earthquake occurred in Zhoukou area and this was the biggest one during the last 30 years in Henan Province.We studied the Total Electron Content（TEC） change and Outgoing Longwave Radiation（OLR） change before this earthquake.The result showed that the TEC anomaly appeared on June 17,namely an area with low TEC value appeared in south Henan Province,and the OLR anomaly appeared on October 22～23,namely a maximum OLR value appeared around Zhoukou area,at the same time the anomaly exsited there for about 2 days.According to the OLR anomaly we can estimate the epicenter within such a small distance error as 50 km,and according to the TEC anomaly we can estimate the magnitue.The problem is that estimating earthquake time is still difficult. |
| Keywords: | Zhoukou earthquake TEC OLR |
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