{"_buckets": {"deposit": "09ef2ef0-cec0-4af5-8b7d-74e20a0322a2"}, "_deposit": {"id": "2930", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2930"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00002930", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2022-05-19", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "3", "bibliographicPageEnd": "1678", "bibliographicPageStart": "1662", "bibliographicVolumeNumber": "230", "bibliographic_titles": [{"bibliographic_title": "Geophysical Journal International", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "SUMMARY\n\n To obtain an internal S-wave velocity structure, we conducted a passive seismic campaign with 21 1-Hz seismometers on and around the Showa-Shinzan lava dome, which emerged during the 1943?1945 eruption of Usu Volcano, Japan. Before the campaign, we calibrated seismometers and found slight phase-response differences between seismometers of less than 1?2°. After the campaign, we extracted seismic wavefield by taking cross-correlations of vertical-component ambient noise records between seismic sites. We developed a new method to measure phase velocities of the Rayleigh wave automatically by assuming layered structure and finally obtained 1-D S-wave velocity models in summit, roof and base regions. The obtained S-wave velocity right beneath the intruded lava dome is higher than that in surrounding areas by a few tens of per cent down to a few hundred metres below sea level, indicating narrow but deep existence of the root of the lava dome. The obtained S-wave velocity at depths shallower than ?50?m inside the lava dome in the summit area was ?1?km?s?1, significantly lower than that predicted from the density of ?2.3 × 103?kg?m?3 estimated in previous muon-radiography studies and a conventional scaling, indicating the effect of cracking in the lava dome.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "Oxford University Press (OUP)", "subitem_publisher_language": "en"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1093/gji/ggac111"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1365-246X", "subitem_source_identifier_type": "EISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Akiko Takeo", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Kiwamu Nishida", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Hiroshi Aoyama", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Motoko Ishise", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Takeru Kai", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Ryo Kurihara", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Takuto Maeda", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Yuta Mizutani", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Yuki Nakashima", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Shogo Nagahara", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Xiaowen Wang", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Lingling Ye", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Takeshi Akuhara", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Yosuke Aoki", "creatorNameLang": "en"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_title": "\u003ci\u003eS\u003c/i\u003e-wave modelling of the Showa-Shinzan lava dome in Usu Volcano, Northern Japan, from seismic observations", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "\u003ci\u003eS\u003c/i\u003e-wave modelling of the Showa-Shinzan lava dome in Usu Volcano, Northern Japan, from seismic observations", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "1", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/2930", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "2930", "relation": {}, "relation_version_is_last": true, "title": ["\u003ci\u003eS\u003c/i\u003e-wave modelling of the Showa-Shinzan lava dome in Usu Volcano, Northern Japan, from seismic observations"], "weko_shared_id": -1}