Scattering and intrinsic absorption parameters of Rayleigh waves at 18 active volcanoes in Japan inferred using seismic interferometry
Scattering and intrinsic absorption parameters of Rayleigh waves at 18 active volcanoes in Japan inferred using seismic interferometry
复制标题
利用地震干涉法推断日本 18 座活火山瑞利波的散射和固有吸收参数
DOI:
10.1007/s00445-022-01536-w
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发表时间:
2022
影响因子:
3.5
通讯作者:
Fujita Eisuke
中科院分区:
文献类型:
--
作者:
Hirose Takashi;Ueda Hideki;Fujita Eisuke
Assessing the relative seismic properties of volcanoes is essential because it improves our understanding of the similarity and diversity of processes occurring in magmatic and hydrothermal systems, thereby contributing to a comprehensive understanding of these systems. Scattering and absorption are among the most challenging but useful parameters to obtain to discriminate volcanic structures. However, the separation of scattering from absorption generally relies on active seismic data or earthquake activity. We estimated seismic scattering and intrinsic absorption parameters of Rayleigh waves at 18 active volcanoes in Japan using seismic ambient noise. The use of cross-correlation functions enables the estimation of these parameters in volcanoes where there are no active seismic data available and with insufficient earthquake activity. The scattering and intrinsic absorption parameters from the 18 volcanoes are about two orders of magnitude larger than those in non-volcanic regions, indicating strong medium heterogeneity in the shallow regions of those volcanoes, as the Rayleigh waves in our target frequency are mainly sensitive to subsurface structures shallower than 1 km in depth. Volcanic islands and volcanoes near the coastline or lakes show the highest intrinsic attenuation and frequency dependence, likely caused by widespread water-saturated regions beneath the volcanoes. Our study highlights both similarities and differences in scattering and absorption properties across the 18 volcanoes. Further developing passive estimation capabilities to better constrain scattering and absorption parameters will allow us to distinguish differences in fracturing and pore space properties of the subsurface medium and will contribute to detailed studies of complex subsurface structures at active volcanic systems.
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影响因子:
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作者:
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通讯作者:
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DOI:
--
发表时间:
2010
期刊:
J.Volcanol. Geotherm. Res. 189
影响因子:
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Kanda;W.
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W.
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C. Sanborn;V. Cormier;M. Fitzpatrick
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M. Fitzpatrick
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J. Prudencio;Y. Aoki;M. Takeo;J. Ibáñez;E. Pezzo;Wenzhan Song
通讯作者:
Wenzhan Song
DOI:
10.1111/j.1365-246x.1993.tb01443.x
发表时间:
1993
期刊:
影响因子:
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作者:
H. Sato
通讯作者:
H. Sato