{"_buckets": {"deposit": "52c466bb-b9ea-4d68-b5f3-1f570893f5ad"}, "_deposit": {"id": "5822", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "5822"}, "status": "published"}, "_oai": {"id": "oai:nied-repo.bosai.go.jp:00005822", "sets": []}, "author_link": [], "item_10001_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1985", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "2", "bibliographicPageEnd": "147", "bibliographicPageStart": "133", "bibliographicVolumeNumber": "33", "bibliographic_titles": [{"bibliographic_title": "Journal of Physics of the Earth", "bibliographic_titleLang": "en"}]}]}, "item_10001_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Five ocean bottom seismographs (OBSs) were dispatched to the source region of the 1983 Japan Sea earthquake (occurred on May 26\n M=7.7) by a helicopter only three days after the mainshock. The source region was 40 to 100 km off the western coast of northern Honshu. The major part of the aftershock area was covered by the OBS network, which recorded ground motion on magnetic tape continuously for 12 days. Among the vast number of aftershocks recorded, 500 events were selected for reproduction. A precise aftershock distribution was obtained from these data. The aftershock area, which ran along the eastern margin of the Japan Basin, was 140 km long in north-south with a width of 40 km. The focal depths of the aftershocks were concentrated in a range of 8 to 21 km. Since the lithosphere of this region is estimated to be no less than 30 km thick, the fracture did not span the entire lithosphere. The geometry of the main fault was suggested by a plane arrangement of the aftershock distribution, which is 30 km long in north-south and dips eastward by 15 to 25°. This observation is consistent with the mechanism solution of the mainshock obtained from land data. Not a few hypocenters which do not belong to the eastward-dipping plane may suggest the existence of another major fault plane. c 1985, The Seismological Society of Japan, The Volcanological Society of Japan, The Geodetic Society of Japan. All rights reserved.", "subitem_description_language": "en", "subitem_description_type": "Other"}]}, "item_10001_relation_14": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type_id": {"subitem_relation_type_id_text": "10.4294/jpe1952.33.133"}}]}, "item_10001_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0022-3743", "subitem_source_identifier_type": "ISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Taku Urabe", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Kiyoshi Suyehiro", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Takaya Iwasaki", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Naoshi Hirata", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Toshihiko Kanazawa", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Azusa Nishizawa", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Hideki Shimamura", "creatorNameLang": "en"}]}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_title": "Aftershock distribution of the 1983 Japan Sea Earthquake as determined from helicopter-dispatched OBS observation", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Aftershock distribution of the 1983 Japan Sea Earthquake as determined from helicopter-dispatched OBS observation", "subitem_title_language": "en"}]}, "item_type_id": "40001", "owner": "1", "path": ["1670839190650"], "permalink_uri": "https://nied-repo.bosai.go.jp/records/5822", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2023-03-30"}, "publish_date": "2023-03-30", "publish_status": "0", "recid": "5822", "relation": {}, "relation_version_is_last": true, "title": ["Aftershock distribution of the 1983 Japan Sea Earthquake as determined from helicopter-dispatched OBS observation"], "weko_shared_id": -1}