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Statistical analysis of seismicity in a wide region around the 1998 Mw 8.1 Balleny Islands earthquake in the Antarctic Plate
https://nipr.repo.nii.ac.jp/records/10206
https://nipr.repo.nii.ac.jp/records/1020665c3b57a-b02f-4719-a731-9b3474a2a3bc
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2014-10-16 | |||||
タイトル | ||||||
タイトル | Statistical analysis of seismicity in a wide region around the 1998 Mw 8.1 Balleny Islands earthquake in the Antarctic Plate | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Statistical analysis of seismicity in a wide region around the 1998 Mw 8.1 Balleny Islands earthquake in the Antarctic Plate | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Seismicity | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Antarctic Plate | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Balleny earthquake | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Detection rate | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ETAS model | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Seismicity | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Antarctic Plate | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Balleny earthquake | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Detection rate | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | ETAS model | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Himeno, Tetsuto
× Himeno, Tetsuto× Kanao, Masaki× Ogata, Yosihiko× Himeno, Tetsuto× Kanao, Masaki× Ogata, Yosihiko |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A large earthquake (Mw 8.1) that occurred off the North Coast of the Antarctic continent near the Balleny Islands on 25 March 1998 was the largest intra-plate earthquake ever recorded in the Antarctic Plate. The earthquake hypocenter catalog for this area shows a marked change in seismicity following the main shock in a large area around the Balleny aftershock region. However, the earthquake catalog includes many aftershocks and is affected by a variable detection rate. To overcome these limitations, we applied statistical models and methods, including Gutenberg–Richter's magnitude frequency distribution, the Epidemic-Type Aftershock Sequences (ETAS) model, and the space–time ETAS model, thereby enabling calculation of the change in detection rate. The results show a change in the spatial pattern of background seismicity over a large region after the 1998 event. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 1998年3月25日にバレニー諸島周辺で発生した大地震は、南極プレート周辺でこれまでに記録されてきた地震の中で最大のものであった。このバレニー地震発生後、その周辺の地震活動度の変化が地震カタログからは見て取れる。しかし、地震カタログには余震や地震の検知率の変化の影響も含まれているため、本当に地震活動が活発になっているか判断することは難しい。そこで、我々はEpidemic Type Aftershock Sequences (ETAS) モデルなどの統計手法を用い、余震などの影響を取り除いた地震活動度(background seismicity)の変化を調べた。 | |||||
書誌情報 |
Polar science en : Polar science 巻 5, 号 4, p. 421-431, 発行日 2011-12 |
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出版者 | ||||||
出版者 | 国立極地研究所 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 18739652 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12240481 | |||||
論文ID(NAID) | ||||||
識別子タイプ | NAID | |||||
関連識別子 | 110008750932 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://doi.org/10.1016/j.polar.2011.08.002 | |||||
関連名称 | 10.1016/j.polar.2011.08.002 |