{"_buckets": {"deposit": "2dd90b7e-9bcc-49b9-b44f-fcdc527ca8e3"}, "_deposit": {"id": "4614", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "4614"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00004614", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1991-05", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "5", "bibliographicPageEnd": "876", "bibliographicPageStart": "873", "bibliographicVolumeNumber": "18", "bibliographic_titles": [{"bibliographic_title": "Geophysical Research Letters", "bibliographic_titleLang": "ja"}, {"bibliographic_title": "GEOPHYSICAL RESEARCH LETTERS", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Four unusual seismic pulses of magnitude about 2 were observed at the 1989 Ito-oki submarine eruption on July 13, 1989. Their seismograms show two distinct characteristics; ineffective shear wave excitation and downward motions of P onsets for all azimuths. Source mechanisms are studied by using data obtained on the local seismic network. Hypocenters were estimated to be in a very shallow part of the upper crust beneath a new crater found after the eruption. The downward first motion and ineffective shear wave excitation are difficult to explain simultaneously by a double couple type source mechanism, suggesting an implosive type source.", "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": "10.1029/91GL01068"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0094-8276", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Ukawa M", "creatorNameLang": "ja"}, {"creatorName": "M UKAWA", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Obara K", "creatorNameLang": "ja"}, {"creatorName": "K OBARA", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Fukuyama E", "creatorNameLang": "ja"}, {"creatorName": "E FUKUYAMA", "creatorNameLang": "en"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_title": "Seismic pulses suggesting an implosive source at the 1989 Ito‐Oki Submarine Eruption, central Japan", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Seismic pulses suggesting an implosive source at the 1989 Ito‐Oki Submarine Eruption, central Japan", "subitem_title_language": "ja"}, {"subitem_title": "SEISMIC PULSES SUGGESTING AN IMPLOSIVE SOURCE AT THE 1989 ITO-OKI SUBMARINE ERUPTION, CENTRAL JAPAN", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "1", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/4614", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "4614", "relation": {}, "relation_version_is_last": true, "title": ["Seismic pulses suggesting an implosive source at the 1989 Ito‐Oki Submarine Eruption, central Japan"], "weko_shared_id": -1}