{"created":"2023-03-30T09:20:19.807959+00:00","id":2882,"links":{},"metadata":{"_buckets":{"deposit":"1646c39b-ad89-4f9b-8cea-cf048b52894a"},"_deposit":{"id":"2882","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"2882"},"status":"published"},"_oai":{"id":"oai:nied-repo.bosai.go.jp:00002882","sets":[]},"author_link":[],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021-06","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"6","bibliographicVolumeNumber":"126","bibliographic_titles":[{"bibliographic_title":"JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Phreatic and phreatomagmatic eruptions represent some of the greatest hazards occurring on volcanoes. They result from complex interactions at a depth between rock, water, and magmatic fluids. Understanding and assessing such processes remain a challenging task, notably because a large-scale characterization of volcanic edifices is often lacking. Here we focused on Miyakejima Island, an inhabited 8-km-wide stratovolcano with regular phreatomagmatic activity. We imaged its plumbing system through a combination of four geophysical techniques: magnetotellurics, seismicity, self-potential, and thermal image. We thus propose the first comprehensive interpretation of the volcanic island in terms of rock properties, temperature, fluid content, and fluid flow. We identify a shallow aquifer lying above a clay cap (<1 km depth) and reveal its relation with magmatic-tectonic features and past eruptive activity. At greater depths (2-4.5 km), we infer a seismogenic resistive region interpreted as a magmatic gas-rich reservoir (>= 370 degrees C). From this reservoir, gases rise through a fractured conduit before being released in the fumarolic area at similar to 180 degrees C. During their ascent, these hot fluids cross a similar to 1.2-km-long liquid-dominated zone causing local steam explosions. Such magmatic-hydrothermal interaction elucidates (i) the origin of the long-period seismic events and (ii) the mixing mechanism between magmatic and hydrothermal fluids, which was previously observed in the geochemical signature of fumaroles. Our results demonstrate that combining multidisciplinary large-scale methods is a relevant approach to better understand volcanic systems, with implications for monitoring strategies.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"AMER GEOPHYSICAL UNION","subitem_publisher_language":"en"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1029/2021JB022034"}}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2169-9356","subitem_source_identifier_type":"EISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Marceau Gresse","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Makoto Uyeshima","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Takao Koyama","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Hideaki Hase","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Koki Aizawa","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Yusuke Yamaya","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Yuichi Morita","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Derek Weller","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Tawat Rung-Arunwan","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Takayuki Kaneko","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Yoichi Sasai","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Jacques Zlotnicki","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Tsuneo Ishido","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Hideki Ueda","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Maki Hata","creatorNameLang":"en"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_title":"Hydrothermal and Magmatic System of a Volcanic Island Inferred From Magnetotellurics, Seismicity, Self-potential, and Thermal Image: An Example of Miyakejima (Japan)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Hydrothermal and Magmatic System of a Volcanic Island Inferred From Magnetotellurics, Seismicity, Self-potential, and Thermal Image: An Example of Miyakejima (Japan)","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":"2882","relation_version_is_last":true,"title":["Hydrothermal and Magmatic System of a Volcanic Island Inferred From Magnetotellurics, Seismicity, Self-potential, and Thermal Image: An Example of Miyakejima (Japan)"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-07T10:25:29.837481+00:00"}