{"_buckets": {"deposit": "531c41db-9a38-4c5c-bf0d-f504a2bc01a9"}, "_deposit": {"id": "2987", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2987"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00002987", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2018-04", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "4", "bibliographicPageStart": "eaao0219", "bibliographicVolumeNumber": "4", "bibliographic_titles": [{"bibliographic_title": "Science Advances", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Tsunami earthquakes are a group of enigmatic earthquakes generating disproportionally large tsunamis relative to seismic magnitude. These events occur most typically near deep-sea trenches. Tsunami earthquakes occurring approximately every 10 years near Torishima on the Izu-Bonin arc are another example. Seismic and tsunami waves from the 2015 event [Mw (moment magnitude) = 5.7] were recorded by an offshore seafloor array of 10 pressure gauges, ~100 km away from the epicenter. We made an array analysis of dispersive tsunamis to locate the tsunami source within the submarine Smith Caldera. The tsunami simulation from a large caldera-floor uplift of ~1.5 m with a small peripheral depression yielded waveforms remarkably similar to the observations. The estimated central uplift, 1.5 m, is ~20 times larger than that inferred from the seismologically determined non-double-couple source. Thus, the tsunami observation is not compatible with the published seismic source model taken at face value. However, given the indeterminacy of Mzx, Mzy, and M{tensile} of a shallow moment tensor source, it may be possible to find a source mechanism with efficient tsunami but inefficient seismic radiation that can satisfactorily explain both the tsunami and seismic observations, but this question remains unresolved.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_publisher_8": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "American Association for the Advancement of Science ({AAAS})", "subitem_publisher_language": "en"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1126/sciadv.aao0219"}}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Yoshio Fukao", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Osamu Sandanbata", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Hiroko Sugioka", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Aki Ito", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Hajime Shiobara", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Shingo Watada", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Kenji Satake", "creatorNameLang": "en"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_title": "Mechanism of the 2015 volcanic tsunami earthquake near Torishima, Japan", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Mechanism of the 2015 volcanic tsunami earthquake near Torishima, Japan", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "1", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/2987", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "2987", "relation": {}, "relation_version_is_last": true, "title": ["Mechanism of the 2015 volcanic tsunami earthquake near Torishima, Japan"], "weko_shared_id": -1}