| 利用湖州台形变观测资料检测地震激发的地球球形自由振荡 |
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| 引用本文： | 方燕勋,卞根发,惠若愚,孙宗强.利用湖州台形变观测资料检测地震激发的地球球形自由振荡[J].中国地震研究,2016(4):584-593. |
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| 作者姓名： | 方燕勋 卞根发 惠若愚 孙宗强 |
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| 作者单位： | 浙江省地震局湖州地震台, 浙江省湖州市岘山路15号 313000,浙江省地震局湖州地震台, 浙江省湖州市岘山路15号 313000,浙江省地震局, 杭州 310013,云南省水富县防震减灾局, 云南水富 657800 |
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| 摘 要： | By using the digital observations of the pendulum tiltmeter, water tube tiltmeter,extensometer and volumetric strainmeter at Huzhou station and with the power spectrum density estimation method,we acquired the_0S_5-_0S_50 fundamental sphere free oscillations caused by the Japan earthquake on March 11,2011,then compared it with the PREM model. The relative errors are mostly bigger than 1.2‰. The extensometer and volume strainmeter can clearly detect _0S_2,_0S_3and_0S_4,which are closely related to the deep structure and earth's interior.
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| 关 键 词： | 垂直摆倾斜仪 水管倾斜仪 伸缩仪 体应变仪 地球自由振荡 |
| 收稿时间： | 2014/8/19 0:00:00 |
| 修稿时间： | 2015/8/31 0:00:00 |
Detecting the Earthquake Excited Spheroidal Free Oscillation of the Earth by Use of Observational Data at Huzhou Seismic Station |
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| Fang Yanxun,Bian Genf,Hui Ruoyu and Sun Zongqiang.Detecting the Earthquake Excited Spheroidal Free Oscillation of the Earth by Use of Observational Data at Huzhou Seismic Station[J].Earthquake Research in China,2016(4):584-593. |
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| Authors: | Fang Yanxun Bian Genf Hui Ruoyu and Sun Zongqiang |
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| Institution: | Huzhou Seismic Station, Earthquake Administration of Zhejiang Province, Huzhou 313000, Zhejiang, China,Huzhou Seismic Station, Earthquake Administration of Zhejiang Province, Huzhou 313000, Zhejiang, China,Earthquake Administration of Zhejiang Province, Hangzhou 310013, China and Bureau of Earthquake Prevention and Disaster Reduction of Shuifu County, Shuifu 657800, Yunnan, China |
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| Abstract: | |
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| Keywords: | Pendulum tiltmeter Water tube tiltmeter Extensometer Volumetric strainmeter Free oscillation of the earth |
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