| 兰州形变台潮汐形变观测结果与甘肃永登、天祝地震 |
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| 引用本文： | 常千军,张昱,周志宇. 兰州形变台潮汐形变观测结果与甘肃永登、天祝地震[J]. 地震工程学报, 1998, 20(3): 33-38 |
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| 作者姓名： | 常千军 张昱 周志宇 |
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| 作者单位： | 中国地震局兰州地震研究所 |
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| 基金项目： | 中国地震局兰州地震研究所青年地震科学基金 |
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| 摘 要： | 分析研究了兰州形变台水管倾斜仪、石英伸缩仪和石英水平摆倾斜仪１９９４—１９９６年的观测资料，发现在甘肃永登和天祝２次地震前Ｍ２波潮汐因子有明显的异常显示．各分量固体潮日均值曲线在２次地震前后出现明显的加速异常变化，且震后速率明显大于震前．
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| 关 键 词： | 甘肃 地倾斜固体潮 异常形态 水平应变固体潮 永登地震 天祝地震 |
| 收稿时间： | 1997-10-15 |
ANALYSIS ON OBSERVATION RESULTS OF LANZHOU DEFORMATION STATION BEFORE AND AFTER THE YONGDENG AND TIANZHU EARTHQUAKES |
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| CHANG Qianjun,ZHANG Yu and ZHOU Zhiyu. ANALYSIS ON OBSERVATION RESULTS OF LANZHOU DEFORMATION STATION BEFORE AND AFTER THE YONGDENG AND TIANZHU EARTHQUAKES[J]. China Earthguake Engineering Journal, 1998, 20(3): 33-38 |
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| Authors: | CHANG Qianjun ZHANG Yu ZHOU Zhiyu |
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| Affiliation: | Lanzhou Institute of Seismology, CSB, Lanzhou 730000,Lanzhou Institute of Seismology, CSB, Lanzhou 730000 and Lanzhou Institute of Seismology, CSB, Lanzhou 730000 |
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| Abstract: | The observation data by water tube tiltmeter,quartz horizontal extensometer and quartz pendulum tiltmeter at Lanzhou deformation station during 1994-1996 are analysed.The results show that anomaly of the tidal factors of M2 wave appeared before the Yongdeng MS5.8 earthquake on July 22,1995 and the Tianzhu MS5.4 earthquake on June 1,1996.Accelerating anomalous change with rate greater after earthquake than before earthquake in tide daily average values are obvious before and after the two earthquakes. |
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| Keywords: | Gansu Ground tilt tide Anomalous character Horizontal strain earth tide Yongdeng earthquake Tianzhu earthquake |
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