{"_buckets": {"deposit": "b03265fc-a0df-40b7-a66d-f839ede39e03"}, "_deposit": {"id": "2011108", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2011108"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02011108", "sets": ["1642837994407", "1642838406414"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "\u6c96\u5408\u5730\u9707\u89b3\u6e2c\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u308b\u6c96\u7e04\u8fd1\u6d77\u3067\u306e\u7dca\u6025\u5730\u9707\u901f\u5831\u306e\u6539\u5584\u53ef\u80fd\u6027", "subitem_1551255648112": "ja"}, {"subitem_1551255647225": "Improvements to an earthquake early warning system from an observation system offshore of the Ryukyu Islands", "subitem_1551255648112": "en"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "\u89aa\u5ddd, \u4f73\u4e43\u5b50", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "\u4e2d\u6751, \u885b", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "Oyakawa, Kanoko", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Nakamura, Mamoru", "creatorNameLang": "en"}]}]}, "item_1617186476635": {"attribute_name": "Access Rights", "attribute_value_mlt": [{"subitem_1522299639480": "open access", "subitem_1600958577026": "http://purl.org/coar/access_right/c_abf2"}]}, "item_1617186626617": {"attribute_name": "Description", "attribute_value_mlt": [{"subitem_description": "We verified the changes in the detection times for the arrival of P-waves, the time difference between the arrivals of S- and P-waves, and the accuracy of hypocenter determination when data from offshore seismic stations were added to those of land-based seismic stations in the Ryukyu Islands via numerical simulation. As a result, the detection times of earthquakes in the Ryukyu Trench and Okinawa Trough were shortened by 15 \u2013 23 seconds and 10\u201316 seconds, respectively. The time from the detection of P-waves to the arrival of S-waves for an earthquake occurring in the Ryukyu Trench increased by 15 \u201320 seconds. The accuracy of hypocenter determination also increased when the offshore observation points were used in combination with those from onshore. From these results, we concluded that the accuracy of hypocenter determination could be improved by using both onshore and offshore observation points, which should improve the earthquake early warning system of the Ryukyu Islands.", "subitem_description_type": "Other"}, {"subitem_description": "\u7d00\u8981\u8ad6\u6587", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "\u7409\u7403\u5927\u5b66\u7406\u5b66\u90e8"}]}, "item_1617186702042": {"attribute_name": "Language", "attribute_value_mlt": [{"subitem_1551255818386": "jpn"}]}, "item_1617186783814": {"attribute_name": "Identifier", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/20.500.12000/46906"}]}, "item_1617186920753": {"attribute_name": "Source Identifier", "attribute_value_mlt": [{"subitem_1522646500366": "ISSN", "subitem_1522646572813": "2434-8503"}]}, "item_1617186941041": {"attribute_name": "Source Title", "attribute_value_mlt": [{"subitem_1522650068558": "ja", "subitem_1522650091861": "\u7409\u7403\u5927\u5b66\u7406\u5b66\u90e8\u7d00\u8981"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "BULLETIN OF THE FACULTY OF SCIENCE UNIVERSITY OF THE RYUKYUS"}]}, "item_1617187056579": {"attribute_name": "Bibliographic Information", "attribute_value_mlt": [{"bibliographicIssueNumber": "109", "bibliographicPageEnd": "19", "bibliographicPageStart": "9"}]}, "item_1617258105262": {"attribute_name": "Resource Type", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_1617265215918": {"attribute_name": "Version Type", "attribute_value_mlt": [{"subitem_1522305645492": "VoR", "subitem_1600292170262": "http://purl.org/coar/version/c_970fb48d4fbd8a85"}]}, "item_1617605131499": {"attribute_name": "File", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "download_preview_message": "", "file_order": 0, "filename": "No109p9.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2011108/files/No109p9.pdf"}, "version_id": "7eb3be04-d7c0-4b9f-8a7a-2eec607ab0bb"}]}, "item_title": "\u6c96\u5408\u5730\u9707\u89b3\u6e2c\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u308b\u6c96\u7e04\u8fd1\u6d77\u3067\u306e\u7dca\u6025\u5730\u9707\u901f\u5831\u306e\u6539\u5584\u53ef\u80fd\u6027", "item_type_id": "15", "owner": "1", "path": ["1642837994407", "1642838406414"], "permalink_uri": "http://hdl.handle.net/20.500.12000/46906", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2020-10-08"}, "publish_date": "2020-10-08", "publish_status": "0", "recid": "2011108", "relation": {}, "relation_version_is_last": true, "title": ["\u6c96\u5408\u5730\u9707\u89b3\u6e2c\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u308b\u6c96\u7e04\u8fd1\u6d77\u3067\u306e\u7dca\u6025\u5730\u9707\u901f\u5831\u306e\u6539\u5584\u53ef\u80fd\u6027"], "weko_shared_id": -1}