Near-field co-seismic ionospheric response due to the northern Chile Mw 8.1 Pisagua earthquake on April 1, 2014 from GPS observations
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- 作者：C.D. Reddya ; cdreddy@iigs.iigm.res.in" class="auth_mail" title="E-mail the corresponding author ; A.S. Sunila ; G. Gonzá ; lezb ; c ; Mahesh N. Shrivastavac ; Marcos Morenod
- 关键词：GPS TEC ; Pisagua earthquake ; Acoustic waves
- 刊名：Journal of Atmospheric and Solar-Terrestrial Physics
- 出版年：2015
- 出版时间：November 2015
- 年：2015
- 卷：134
- 期：Complete
- 页码：1-8
- 全文大小：4816 K
文摘
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Ionspheric perturbations are caused by shock acoustic waves of Mw 8.1 Pisagua earthquake.
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Average horizonatal propagation velocity of the acoustic wave has been estimated as 1180 m/s.
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The coseismic ionospheric peak-to-peak signal found to be ~1.25 TECU and confined to ~1000 km radius.
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Spatial distribution of the ionospheric response discussed.
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Feasibility of ionospheric response from Rayleigh and Tsunami waves discussed.
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The primary acoustic waves and the secondary gravity waves are discerned using wavelet spectrograms.