甘肃宕昌形变台水管倾斜仪观测资料分析及映震能力初步研究  

AN ANALYSIS ON OBSERVATION DATA OF WATER TUBE TILTMETER OF TANCHANG STATION,GANSU AND A PRELIMINARY STUDY ON ITS REFLECTING EARTHQUAKE ABILITY

作　　者：张昱[1] 朱五泉 常千军[1] 周志宇[1] 

机构地区：[1]中国地震局兰州地震研究所,甘肃兰州730000 [2]宕昌县地震局,甘肃宕昌748500

出　　处：《西北地震学报》1999年第3期280-284,共5页Northwestern Seismological Journal

基　　金：中国地震局兰州地震研究所青年地震科学基金

摘　　要：分析了甘肃宕昌形变台 Ｆ Ｓ Ｑ 型自记水管倾斜仪１９９０ ～１９９８ 年的观测资料．分析结果表明：其潮汐响应函数的测量精度达到了观测规范的要求．水文与气象因素对观测资料有明显影响．该台资料对发生在台站附近的４ 级左右地震有一定程度的短临异常显示；Observation data of water tube tiltmeter with type FSQ of Tanchang station from 1990 to 1998 are analysed.The results show that observing accuracy of tide response function is in the observation standard.Influence of hydrologic and meteorological factors on observation data is obvious.Short imminent anomalies in a certain extent in the observation data of Tanchang station appear before earthquakes with magnitude of 4 or so in the vicinity of the station and trend anomalies appear before mid strong earthquakes within a distance from the station.

关 键 词：水管倾斜仪 观测精度 映震能力 地震数据 

分 类 号：P315.63[天文地球—地震学]