| 震源有限性及其对地震早期预警系统的意义 |
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| 引用本文： | 李佳威,张盛峰,张琰.震源有限性及其对地震早期预警系统的意义[J].地震学报,2018,40(6):728-736. |
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| 作者姓名： | 李佳威 张盛峰 张琰 |
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| 作者单位： | 1.中国北京100081中国地震局地球物理研究所 |
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| 基金项目： | 中国科学院国际合作局对外合作重点项目（131551KYSB20160002）资助 |
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| 摘 要： | 本文通过多个震例的假定情形，讨论了地震破裂的有限性对地震早期预警系统布局设计的重要意义。分析结果认为，地震早期预警系统对地震减灾所能发挥的作用要远大于传统地震学视角下的预期。该观点深化了目前所认为的预警台站应该适当考虑非均匀布设的认识，强调在发生较大地震时，近断层区域密集布设的预警台站可能会使地震早期预警系统更加有效。
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| 关 键 词： | 地震早期预警 震源有限性 预警“盲区” 现代地震学 |
| 收稿时间： | 2018-01-11 |
Seismic finite source and its significance to earthquake early warning system（EEWS） |
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| Institution: | 1.Institute of Geophysics，China Earthquake Administration，Beijing 100081，China2.School of Earth and Space Sciences，Peking University，Beijing 100871，China3.Swiss Seismological Service，Swiss Federal Institute of Technology Zürich，Zürich CH-8092，Switzerland4.Shandong Earthquake Agency，Jinan 250100，China5.Institute of Statistical Mathematics，Tokyo 106-8569，Japan |
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| Abstract: | Finite size of an earthquake rupture, one of the key concepts in modern seismology, has significant implication for the design of an earthquake early warning system （EEWS）. We discussed this issue by scenario earthquake cases, arguing that an EEWS has the potential to make much greater contribution to the reduction of earthquake disasters which is far beyond the expectation in the view of traditional seismology. The discussion deepens the present understanding of the EEWS design which does not aim at a homogeneous deployment, stressing that near-fault denser earthquake early warning station deployment may make the EEWS much more effective during great earthquakes. |
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