The Low Point Time Distribution Characteristics of Geomagnetic Z Component in Qiongzhong
详细信息
- 责任者：Ye Xiangding (Earthquake Administration of Hainan Province ; Hainan 570203 ; China) ; Gu Shenyi
- 刊名：South China Journal of Seismology
- 出版年：2013
- 卷期：33(3)
- 关键词：日变化 ; diurnal variations ; 地震预测 ; earthquake prediction ; 海南 ; Hainan Province
- 页码：p.55-62
- 图表：5 illus., 5 tables, 4 refs.
- 分类号：0500
- issnNo：ISSN1001-8662
- isbnNo：CN44-1266/P
摘要
In order to analyze the average low point time distribution of geomagnetic Z component,we collected the geomagnetic Z component data in Qiongzhong seismic station from 2002 to 2012.We find that: he annual average low point time focuses on GMT12 ∶52, and are mainly distributed between GMT12:10 and GMT13:34; There are adjustment and change in varying degrees in different month and seasons. As the basis of determining whether a day low point time is abnormal, we can determine the geomagnetic low point displacement for the earthquake prediction and improve the accuracy of earthquake prediction.