1990年共和7.0级地震和景泰6.2级地震前的短临弱前兆信息  

SHORT-IMPENDING WEAK PRECURSOR INFORMATIONS BEFORE THE GONGHE M_S7.0 AND JINGTAI M_S6.2 EARTHQUAKES IN 1990

作　　者：万存绪 吴中力 郝臻 王静波 

机构地区：[1]平凉地区地震局,甘肃平凉744000 [2]平凉地区工业研究所,甘肃平凉744000 [3]平凉中心地震台,甘肃平凉744000

出　　处：《西北地震学报》2001年第1期30-35,共6页Northwestern Seismological Journal

摘　　要：应用作者研究的提取弱短临前兆信息的方法及定量指标[2 ] ,对 1 990年甘肃、青海、宁夏、陕西四省 (区 )部分专业台 4种手段、31个台 (项 )的观测资料进行了处理 .结果表明 ,在 1 990年共和 7.0级地震和景泰 6 .2级地震前 ,约占总数 6 5 %的台项均出现了弱前兆异常 .事实进一步证明 。The short term and imminent earthquake prediction is the major difficult problem on earthquake prediction.It is dependent on good precursory measures and data processing method.Based on the viewpoint of the weak precursor information and by using the method for getting the information,the data observed from 31 stations or observation items such as radon in groundwater,water level,earth resistivity and ground stress in Gansu,Qinghai,Ningxia,Shaanxi are processed. The results show that there are weak precursor informations on about sixty five percent of the stations or items before the Gonghe M S7.0 and Jingtai M S6.2 earthquakes.It is quite evident that the method has higher capacity for distinguishing anomalies than other ways.

关 键 词：地震前兆 临震异常 弱前兆信息 共和地震 景泰地震 前兆信息 

分 类 号：P315.72[天文地球—地震学]