Evaluation of potential hazards from teletsunami in China:Tidal observations of a teletsunami generated by the Chile 8.8 M_w earthquake
Evaluation of potential hazards from teletsunami in China:Tidal observations of a teletsunami generated by the Chile 8.8 M_w earthquake作者机构：National Marine Environmental Forecasting Center Beijing 100081 China
出 版 物：《Chinese Science Bulletin》 (Chinese Science Bulletin)
年 卷 期：2011年第56卷第11期
页 面：1108-1116页
核心收录：
学科分类：070801[理学-固体地球物理学] 07[理学] 0707[理学-海洋科学] 0708[理学-地球物理学]
基 金：supported by the National Natural Science Funds for Young Scholar(41002067) the 11th Five-Year Plan for Science and Technology Development "Research on the Key Technology for Tsunami Warning"
主 题：中国大陆 8级地震 潮汐观测 智利 评估 危险 东南沿海 实时记录
摘 要：At 14:34 Beijing time on February 27,2010,an earthquake of M w 8.8 rocked the central coast of Chile.A teletsunami was triggered by the huge earthquake and then propagated across the entire Pacific in less than 24 *** initial tsunami wave arrived at the southeast coast of China at 16:20 on February 28 and was recorded in real time by a number of tidal gauges off China s Mainland and Taiwan *** teletsunami waves have never been recorded with such a broad geographical scope in China before this *** aim of the present work is to report the first description of sea-level oscillations generated by the Chile tsunami,and evaluate the potential hazards that teletsunami poses to the coast of *** results reveal that the east coast of Taiwan Province,Zhejiang Province and the north coast of Fujian Province are vulnerable to transoceanic *** addition,spectral and wavelet analysis of the recorded sea-level oscillations shows that seiches are easily excited by the resonance resulting from the interaction between the initial tsunami waves and local geometry (such as semi-enclosed bays and ports).The superimposition of the two oscillations would amplify the wave height further.
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