{"created":"2023-03-30T09:21:26.565296+00:00","id":2930,"links":{},"metadata":{"_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":"<i>S</i>-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":"<i>S</i>-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"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-03-30"},"publish_date":"2023-03-30","publish_status":"0","recid":"2930","relation_version_is_last":true,"title":["<i>S</i>-wave modelling of the Showa-Shinzan lava dome in Usu Volcano, Northern Japan, from seismic observations"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-07T10:26:25.948660+00:00"}