THE EVOLUTION FEATURE OF THE WATER RADON ANOMALY BEFORE THE TANGSHAN M 7.8 EARTHQUAKE
-
摘要: 根据华北地区分布的33 个水化观测点的水氡观测资料,以半年为尺度对唐山7.8 级地震前水氡的异常演化过程进行了研究,认为:唐山7.8 级地震前水氡异常存在由外围向震中区演化的异常特征,且在唐山地震发生的短临阶段,水氡异常在唐山地区形成集中,异常强度最大。Abstract: On the basis of water radon data of 33 wells distributed in North China and taking per half of a year as a scale, the evolution processes of the water radon before the Tangshan M7.8 earthquake are studied. The results are: the water radon anomalies were progressively developed from the outer ring to the epicentral area before the Tang shan M7.8, the earthquake occurred in its short-imminent stage, at this stage, water radon anomalies were accumulated at Tangshan area and the anomalous intensity was the bigest.
-
Key words:
- Tangshan earthquake /
- water radon /
- feature
-
[1] 1 国家地震局《一九七六年唐山地震》编辑组. 一九七六年唐山地震. 北京: 地震出版社, 1982. 271-295 -

计量
- 文章访问数: 1294
- HTML全文浏览量: 244
- PDF下载量: 164