| EXAMINATION OF THE RELIABILITY OF THE JMA SEISMIC OBSERVATION NETWORK AROUND THE SOUTHERN OKINAWA TROUGH |
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| 引用本文： | 陈佐林,杨作升. EXAMINATION OF THE RELIABILITY OF THE JMA SEISMIC OBSERVATION NETWORK AROUND THE SOUTHERN OKINAWA TROUGH[J]. 中国海洋湖沼学报, 1994, 12(2): 114-119. DOI: 10.1007/BF02850509 |
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| 作者姓名： | 陈佐林 杨作升 |
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| 作者单位： | CHEN Zuo-lin YANG Zuo-sheng(Institute of Estuarine & Coastal Studies，Ocean University of Qingdao 266003) Hirata Naoshi(Geophysical Department of Chiba University，Japan 260) |
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| 摘 要： | After the establishment of the seismic observation network of southern Okinawa in August,1988 by the JMA(Japan Meteorological Agency),many hypocenters of earthquakes have been located.However,due to the small number of observation stations and narrow configuration of the array,the hypocenters lo-cated contain some systematic errors.Numerical experiments on the extent of the errors and the reliabilityof the JMA seismic observation network showed that the obtained hypocenters deeper than 100 km werereliable,but that for the obtained hypocenters shallower than 100 km,only the epicenters were reliable.
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| 收稿时间： | 1993-05-06 |
Examination of the reliability of the JMA seismic observation network around the southern Okinawa Trough |
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| Chen Zuo-lin,Yang Zuo-sheng,Hirata Naoshi. Examination of the reliability of the JMA seismic observation network around the southern Okinawa Trough[J]. Chinese Journal of Oceanology and Limnology, 1994, 12(2): 114-119. DOI: 10.1007/BF02850509 |
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| Authors: | Chen Zuo-lin Yang Zuo-sheng Hirata Naoshi |
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| Affiliation: | (1) Institute of Estuarine & Coastal Studies, Ocean University of Qingdao, 266003 Qingdao, China;(2) Geophysical Department of Chiba University, 260, Japan |
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| Abstract: | After the establishment of the seismic observation network of southern Okinawa in August, 1988 by the JMA (Japan Meteorological Agency), many hypocenters of earthquakes have been located. However, due to the small number of observation stations and narrow configuration of the array, the hypocenters located contain some systematic errors. Numerical experiments on the extent of the errors and the reliability of the JMA seismic observation network showed that the obtained hypocenters deeper than 100 km were reliable, but that for the obtained hypocenters shallower than 100 km, only the epicenters were reliable. |
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| Keywords: | examination numerical experiment hypocenter depth JMA southern Okinawa Trough |
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