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  1. 防災科研関係論文

Numerical forecasting of the time interval between successive M8 earthquakes along the Nankai Trough, southwest Japan, using ocean bottom cable network data

https://nied-repo.bosai.go.jp/records/4201
https://nied-repo.bosai.go.jp/records/4201
4651843d-115c-4a64-b609-f19a87a4be5f
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 en
タイトル Numerical forecasting of the time interval between successive M8 earthquakes along the Nankai Trough, southwest Japan, using ocean bottom cable network data
言語
言語 eng
著者 Takane Hori

× Takane Hori

en Takane Hori

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Mamoru Hyodo

× Mamoru Hyodo

en Mamoru Hyodo

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Shin'ichi Miyazaki

× Shin'ichi Miyazaki

en Shin'ichi Miyazaki

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Yoshiyuki Kaneda

× Yoshiyuki Kaneda

en Yoshiyuki Kaneda

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抄録
内容記述タイプ Other
内容記述 One possible approach to estimating the time interval between large-scale TAinankai (TAikai) and Nankai earthquakes on the Japan arc is sequential assimilation of crustal deformation data. We conducted numerical modeling of sequential assimilation using surface deformation calculated from earthquake generation cycle simulations along the Nankai Trough. To account for observation noise, we used measured ocean bottom pressure gauge data, excluding tidal modulation, from a station on the ocean bottom cable network Dense Oceanfloor Network System for Earthquakes and Tsunamis in the Kumano basin. We used sequential importance sampling as our data assimilation method. We found that as the amount of data increased, the estimated time interval between the TAinankai and Nankai earthquakes approached the "true" observed interval. In addition, the noise in the pressure gauge data was sufficiently small that simulated crustal deformation patterns could be distinguished for different time intervals.
言語 en
書誌情報 en : MARINE GEOPHYSICAL RESEARCH

巻 35, 号 3, p. 285-294
出版者
言語 en
出版者 SPRINGER
ISSN
収録物識別子タイプ EISSN
収録物識別子 1573-0581
DOI
関連識別子 10.1007/s11001-014-9226-8
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