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{"_buckets": {"deposit": "9ccf021d-b1cc-443c-aa76-284c05277f37"}, "_deposit": {"id": "2716", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2716"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00002716", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2015", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "23", "bibliographicPageEnd": "10,262", "bibliographicPageStart": "10,256", "bibliographicVolumeNumber": "42", "bibliographic_titles": [{"bibliographic_title": "Geophysical Research Letters", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "c 2015. American Geophysical Union. All Rights Reserved. We observed the activity of long-period tremors (LPTs) with a period of ?15 s at Aso volcano, Japan, during a 3 year period including the 2014 eruptions. The number of LPTs detected systematically increased 3 months before the Strombolian eruptions. LPT activity can be divided into five stages based on rapid changes in the maximum LPT amplitude. The amplitude-frequency relation follows an exponential distribution during each stage before the Strombolian eruptions, with different characteristic amplitudes for each stage, indicating that the scale of the source property changed in stages. However, during a stage that persisted for 6 days after the onset of Strombolian activity, the amplitude-frequency relation temporarily followed a power law distribution, indicating that the LPT source process no longer had a characteristic scale. In the last stage, the amplitude-frequency relation returned to an exponential distribution. We therefore conclude that the physical source of volcanic LPTs changed during the eruption period.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "Wiley-Blackwell", "subitem_publisher_language": "en"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1002/2015gl066443"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1944-8007", "subitem_source_identifier_type": "EISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Osamu Sandanbata", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Kazushige Obara", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Takuto Maeda", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Ryota Takagi", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Kenji Satake", "creatorNameLang": "en"}]}]}, "item_title": "Sudden changes in the amplitude-frequency distribution of long-period tremors at Aso volcano, southwest Japan", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Sudden changes in the amplitude-frequency distribution of long-period tremors at Aso volcano, southwest Japan", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "1", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/2716", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "2716", "relation": {}, "relation_version_is_last": true, "title": ["Sudden changes in the amplitude-frequency distribution of long-period tremors at Aso volcano, southwest Japan"], "weko_shared_id": -1}
  1. 防災科研関係論文

Sudden changes in the amplitude-frequency distribution of long-period tremors at Aso volcano, southwest Japan

https://nied-repo.bosai.go.jp/records/2716
https://nied-repo.bosai.go.jp/records/2716
8570f26a-3993-48bc-9325-f8be0623dbfe
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 en
タイトル Sudden changes in the amplitude-frequency distribution of long-period tremors at Aso volcano, southwest Japan
著者 Osamu Sandanbata

× Osamu Sandanbata

en Osamu Sandanbata

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Kazushige Obara

× Kazushige Obara

en Kazushige Obara

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Takuto Maeda

× Takuto Maeda

en Takuto Maeda

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Ryota Takagi

× Ryota Takagi

en Ryota Takagi

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Kenji Satake

× Kenji Satake

en Kenji Satake

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抄録
内容記述タイプ Other
内容記述 c 2015. American Geophysical Union. All Rights Reserved. We observed the activity of long-period tremors (LPTs) with a period of ?15 s at Aso volcano, Japan, during a 3 year period including the 2014 eruptions. The number of LPTs detected systematically increased 3 months before the Strombolian eruptions. LPT activity can be divided into five stages based on rapid changes in the maximum LPT amplitude. The amplitude-frequency relation follows an exponential distribution during each stage before the Strombolian eruptions, with different characteristic amplitudes for each stage, indicating that the scale of the source property changed in stages. However, during a stage that persisted for 6 days after the onset of Strombolian activity, the amplitude-frequency relation temporarily followed a power law distribution, indicating that the LPT source process no longer had a characteristic scale. In the last stage, the amplitude-frequency relation returned to an exponential distribution. We therefore conclude that the physical source of volcanic LPTs changed during the eruption period.
言語 en
書誌情報 en : Geophysical Research Letters

巻 42, 号 23, p. 10,256-10,262, 発行日 2015
出版者
言語 en
出版者 Wiley-Blackwell
ISSN
収録物識別子タイプ EISSN
収録物識別子 1944-8007
DOI
関連識別子 10.1002/2015gl066443
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