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{"_buckets": {"deposit": "60afefb5-14a2-4090-9779-960624ea84a1"}, "_deposit": {"id": "4213", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "4213"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00004213", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1992-12-31"}, "bibliographicIssueNumber": "1-3", "bibliographicPageEnd": "175", "bibliographicPageStart": "165", "bibliographicVolumeNumber": "75", "bibliographic_titles": [{"bibliographic_title": "Physics of the Earth and Planetary Interiors", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Precise earthquake locations in the vicinity of a trench axis elucidate the characteristics of the shallower part of a subducting plate. We split the Japan Trench into two regions, off-Sanriku in the north and off-Fukushima in the south, on the basis of the seismic properties of the regions and the fine microearthquake structure investigated by ocean bottom seismographic surveys, as well as recent observation of major seismic activity. From ocean bottom seismograph data, the hypocentral distributions along a profile perpendicular to the trench axis, indicate that almost all earthquakes occur along the boundary separating the subducting Pacific plate and the landward plate. A difference of the hypocentral distribution between off-Fukushima and off-Sanriku is found at the shallow plate boundary level. The seismic thrust zone begins at more than 100 km landwards from the trench axis off-Fukushima, whereas it begins at 50 km off-Sanriku and is nearly flat between 50 and 100 km from the trench axis. This reflects regional variations of the interplate coupling. In spite of these variations, a common characteristic in recent observations indicates that in both regions almost all the hypocenters are deeper than 10 km. This suggests the plate boundary to be decoupled at least in the part shallower than 10 km. © 1992.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1016/0031-9201(92)90127-H"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0031-9201", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "A. Nishizawa", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "T. Kanazawa", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "T. Iwasaki", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "H. Shimamura", "creatorNameLang": "en"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_title": "Spatial distribution of earthquakes associated with the Pacific plate subduction off northeastern Japan revealed by ocean bottom and land observation", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Spatial distribution of earthquakes associated with the Pacific plate subduction off northeastern Japan revealed by ocean bottom and land observation", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "1", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/4213", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "4213", "relation": {}, "relation_version_is_last": true, "title": ["Spatial distribution of earthquakes associated with the Pacific plate subduction off northeastern Japan revealed by ocean bottom and land observation"], "weko_shared_id": -1}
  1. 防災科研関係論文

Spatial distribution of earthquakes associated with the Pacific plate subduction off northeastern Japan revealed by ocean bottom and land observation

https://nied-repo.bosai.go.jp/records/4213
https://nied-repo.bosai.go.jp/records/4213
c7187306-17c5-4360-bb88-568e265cea99
Item type researchmap(1)
公開日 2023-03-30
タイトル
言語 en
タイトル Spatial distribution of earthquakes associated with the Pacific plate subduction off northeastern Japan revealed by ocean bottom and land observation
言語
言語 eng
著者 A. Nishizawa

× A. Nishizawa

en A. Nishizawa

Search repository
T. Kanazawa

× T. Kanazawa

en T. Kanazawa

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T. Iwasaki

× T. Iwasaki

en T. Iwasaki

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H. Shimamura

× H. Shimamura

en H. Shimamura

Search repository
抄録
内容記述タイプ Other
内容記述 Precise earthquake locations in the vicinity of a trench axis elucidate the characteristics of the shallower part of a subducting plate. We split the Japan Trench into two regions, off-Sanriku in the north and off-Fukushima in the south, on the basis of the seismic properties of the regions and the fine microearthquake structure investigated by ocean bottom seismographic surveys, as well as recent observation of major seismic activity. From ocean bottom seismograph data, the hypocentral distributions along a profile perpendicular to the trench axis, indicate that almost all earthquakes occur along the boundary separating the subducting Pacific plate and the landward plate. A difference of the hypocentral distribution between off-Fukushima and off-Sanriku is found at the shallow plate boundary level. The seismic thrust zone begins at more than 100 km landwards from the trench axis off-Fukushima, whereas it begins at 50 km off-Sanriku and is nearly flat between 50 and 100 km from the trench axis. This reflects regional variations of the interplate coupling. In spite of these variations, a common characteristic in recent observations indicates that in both regions almost all the hypocenters are deeper than 10 km. This suggests the plate boundary to be decoupled at least in the part shallower than 10 km. © 1992.
言語 en
書誌情報 en : Physics of the Earth and Planetary Interiors

巻 75, 号 1-3, p. 165-175
ISSN
収録物識別子タイプ ISSN
収録物識別子 0031-9201
DOI
関連識別子 10.1016/0031-9201(92)90127-H
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