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相關文獻
- Re-examination of the Epicenter of the 16 September 1994 Taiwan Strait Earthquake Using the Beam-forming Method
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題 名 | Re-examination of the Epicenter of the 16 September 1994 Taiwan Strait Earthquake Using the Beam-forming Method=以Beam-forming法重新檢驗1994年9月16日臺灣海峽地震之震央 |
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作 者 | 黃柏壽; 陳國誠; 顏宏元; 姚振興; | 書刊名 | Terrestrial, Atmospheric and Oceanic Sciences |
卷 期 | 10:3 1999.09[民88.09] |
頁 次 | 頁529-542 |
分類號 | 354.4 |
關鍵詞 | 臺灣海峽; 地震; Beam-forming法; Taiwan strait; Beam-forming; Seismic array; Relocation; |
語 文 | 英文(English) |
英文摘要 | The source location of the 16 September 1994 Taiwan Strait earthquake was relocated based on the beam-forming method using joint seismic observations from regional seismic networks in Taiwan and Fujian andthe International Seismological Center Bulletin. The revised epicenter islocated at latitude 22.37° N (±0.03°) and longitude 118.63° E (±0.03°). Results of this study showed that the location uncertainty has been significantly reduced using this approach. Decomposition tests of this study showedthat the epicenters of Taiwan Strait events can be determined by the beamforming method using data from densely distributed seismic stations in Taiwan. However, source depths of Taiwan Strait events can not be determined unambiguously using the first P-arrivals only. Seismic waveformdata should be carefully re-examined using this method to investigate earthquake source properties and seismicity of the Taiwan Strait region. |
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