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  1. 紀要論文
  2. 琉球大学理学部紀要
  3. 109号
  1. 部局別インデックス
  2. 理学部

沖合地震観測システムによる沖縄近海での緊急地震速報の改善可能性

http://hdl.handle.net/20.500.12000/46906
http://hdl.handle.net/20.500.12000/46906
105dd477-a318-4109-8bda-b7c6ff496827
名前 / ファイル ライセンス アクション
No109p9.pdf No109p9.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2020-10-08
タイトル
タイトル 沖合地震観測システムによる沖縄近海での緊急地震速報の改善可能性
言語 ja
作成者 親川, 佳乃子

× 親川, 佳乃子

ja 親川, 佳乃子

中村, 衛

× 中村, 衛

ja 中村, 衛

Oyakawa, Kanoko

× Oyakawa, Kanoko

en Oyakawa, Kanoko

Nakamura, Mamoru

× Nakamura, Mamoru

en Nakamura, Mamoru

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 We verified the changes in the detection times for the arrival of P-waves, the time difference between the arrivals of S- and P-waves, and the accuracy of hypocenter determination when data from offshore seismic stations were added to those of land-based seismic stations in the Ryukyu Islands via numerical simulation. As a result, the detection times of earthquakes in the Ryukyu Trench and Okinawa Trough were shortened by 15 – 23 seconds and 10–16 seconds, respectively. The time from the detection of P-waves to the arrival of S-waves for an earthquake occurring in the Ryukyu Trench increased by 15 –20 seconds. The accuracy of hypocenter determination also increased when the offshore observation points were used in combination with those from onshore. From these results, we concluded that the accuracy of hypocenter determination could be improved by using both onshore and offshore observation points, which should improve the earthquake early warning system of the Ryukyu Islands.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学理学部
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/46906
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 2434-8503
収録物名
言語 ja
収録物名 琉球大学理学部紀要
書誌情報
号 109, p. 9-19, 発行日 2020-09
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