摘要
对兰州—天水—武都地区重力网 1 991～ 1 999年 9期复测的重力资料进行了对比分析 .结合地质构造分析了重力场变化与永登 5 .8级和宕昌 3.9级地震的关系 .结果表明 ,这 2次地震前后 。
The 9 years gravity informations measured from 1991 to 1999 in Lanzhou-Wudu-Tianshui area are analyzed and compared.The relationship of gravity with the Yongdeng M S5.8 earthquake on July 22,1995 and Tanchang M S3.9 earthquake on Nov. 18,1998 is discussed by considering geologic structures.The results show that there were obvious gravity changes near the epicenters before and after the two earthquakes.
出处
《西北地震学报》
CSCD
北大核心
2001年第1期74-77,共4页
Northwestern Seismological Journal
基金
中国地震局兰州地震研究所论著!编号:LC2 0 0 0 0 39
