{"_buckets": {"deposit": "40d25211-38f1-4d16-8050-8ac870d09a21"}, "_deposit": {"id": "5879", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "5879"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00005879", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2011", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "7", "bibliographicPageEnd": "667", "bibliographicPageStart": "663", "bibliographicVolumeNumber": "63", "bibliographic_titles": [{"bibliographic_title": "EARTH PLANETS AND SPACE", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "We conduct seismic tomography using arrival time data picked by NIED Hi-net, including earthquakes off the coast, outside the seismic network. For these offshore events, we use the NIED F-net focal depth. We detect two low-V zones in the uppermost subducting oceanic crust. The landward low-V zone with a large anomaly corresponds to the western edge of the coseismic slip zone of the 2011 off the Pacific coast of Tohoku Earthquake. The asperities of the previously known Off-Miyagi and Off-Fukushima earthquakes with magnitudes around 7.0 are also located at the boundary of the low-V and the eastern high-V zones. The initial break point (hypocenter) is associated with the edge of a slightly low-V and low-V-p/V-s zone. The trenchward low-V and low-V-p/V-s zone extending southwestward from the hypocenter may indicate the existence of a subducted seamount. The high-V zone and low-V-p/V-s zone might have accumulated the strain and resulted in the huge coseismic slip zone of the 2011 Tohoku Earthquake. The low-V and low-V-p/V-s zone is a slight fluctuation within the high-V zone and might have acted as the initial break point of the 2011 Tohoku Earthquake.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "SPRINGER HEIDELBERG", "subitem_publisher_language": "en"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.5047/eps.2011.05.018"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1880-5981", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Makoto Matsubara", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Kazushige Obara", "creatorNameLang": "en"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_title": "The 2011 off the Pacific coast of Tohoku Earthquake related to a strong velocity gradient with the Pacific plate", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "The 2011 off the Pacific coast of Tohoku Earthquake related to a strong velocity gradient with the Pacific plate", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "1", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/5879", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "5879", "relation": {}, "relation_version_is_last": true, "title": ["The 2011 off the Pacific coast of Tohoku Earthquake related to a strong velocity gradient with the Pacific plate"], "weko_shared_id": -1}