WEKO3
アイテム
{"_buckets": {"deposit": "915f3bfb-88d4-4a2d-a297-573f11a62471"}, "_deposit": {"id": "32852", "owner": "1", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "32852"}, "status": "published"}, "_oai": {"id": "oai:repository.dl.itc.u-tokyo.ac.jp:00032852", "sets": ["4763", "4764"]}, "author_link": ["128040", "128041", "128038", "128039"], "item_4_alternative_title_1": {"attribute_name": "その他のタイトル", "attribute_value_mlt": [{"subitem_alternative_title": "Description of the November 21, 1986 Fissure Eruption on the Caldera Floor of Izu-Oshima Volcano, Japan : Analysis of a Series of Photographs"}]}, "item_4_biblio_info_7": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1987-10-23", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "2", "bibliographicPageEnd": "162", "bibliographicPageStart": "149", "bibliographicVolumeNumber": "62", "bibliographic_titles": [{"bibliographic_title": "東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo"}]}]}, "item_4_description_13": {"attribute_name": "フォーマット", "attribute_value_mlt": [{"subitem_description": "application/pdf", "subitem_description_type": "Other"}]}, "item_4_description_5": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "1986年11月21日に伊豆大島のカルデラ床で発生した割れ目噴火について,外輪山北東端と元町郊外で撮影したスチール・フィルムなどをもとに外形上の発達の推移を調べた.三原山の山頂火口から北へ約1km離れたカルデラ床でF1が16時15分に開口し,白煙に続いて灰色の噴煙と赤熱物が噴出した.追いかけるようにF1の南東側にF2が開口した.続いて,16時27分にF3がF2の南東側に,16時40分にF4がF3の南東側にそれぞれ開口した.全体としてみれば,噴火割れ目は北西から南東に,低地から高地に向けて次々に開口した.各割れ目は開口直後に約25m/minの速さで両方向にそれぞれ拡大した.噴火割れ目からの赤熱噴出物は火のカーテンの観を呈した.F1とF2は一列の噴火割れ目になり,それとF3はミ型に雁行した.噴火の勢いは16時50分頃から著しく増大した.火柱の高さはそれまで平均15m/minで増していたが,16時50分過ぎから100m/minの速さに変わった.火柱の高さは17時10分頃に最高の1.6kmに達し,その後しだいに低くなった.火口列の全長はちょうど1.0kmに達した.", "subitem_description_type": "Abstract"}, {"subitem_description": "On the evening of November 21, 1986, new fissure eruptions occurred on the caldera floor of Izu-Oshima Volcano, Japan. The sequence of their formation is studied on the basis of time-printed photographs which were taken in succession by the authors at close range during the eruption. Shortly after 2 p.m., earthquakes began to increase in number. At 4 : 15 p. m. (7 : 15 a. m. in UT), the first eruption began with the opening of a small fissure from which gas started to rise into the air and then red-hot material spurted up. This outburst was about 1 km north of the summit pit of Mt. Miharayama. At about the same time the second outburst broke out 150 m to the southeast. At 4: 27 p.m., en echelon fissure started to open 110 m farther southeast. During the early stage of eruptions, individual fissures extended, with an average speed of 25 m/ min, both to the northwest and to the southeast across the caldera floor. Red-hot scorias with enormous clouds squirted from many points along fissures in the form of a nearly continuous line of eruptive fountains, producing a curtain of fire. The fountains gradually grew in height with an average speed of 15m/min. By 4: 40 p.m., the curtain of fire reached a height of 440 m and a length of 870 m. During the eruption, deep rumblings emanating from fountains were heard, and numerous earthquakes were felt. At 4: 40 p.m., a new eruption occurred 70 m farther southeast at the flank of Mt. Mihara-yama. On the assumption that the eruptive activity migrated to the southeast due to a rise of local dyke, an average rate of the rise is estimated to be about 3 m/ min. Shortly after 4: 50 p.m., the eruptive phase markedly increased in violence and changed form from fire fountains to some red-hot pillars. The pillars grew rapidly higher with an average velocity of 100 m/min. They reached maximum heights of 1.6 km at 5: 10 p.m. By that time, the fissure zone extended as much as 10 km long and consisted of four individual fissures 140-440 m in length. Lava from fissures spread out to form fan-shaped flows to the north-northwest and to the northeast of the caldera floor. The activity started to decline around 6 p.m. and ceased at about 11p.m., having lasted 7 hours. Although no lives were lost, a series of violent eruptions on November 21 forced all 10,000 islanders to evacuate Izu-Oshima island temporarily.", "subitem_description_type": "Abstract"}]}, "item_4_full_name_3": {"attribute_name": "著者別名", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "128040", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Abe, Katsuyuki"}]}, {"nameIdentifiers": [{"nameIdentifier": "128041", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Takahashi, Masayoshi"}]}]}, "item_4_identifier_registration": {"attribute_name": "ID登録", "attribute_value_mlt": [{"subitem_identifier_reg_text": "10.15083/0000032852", "subitem_identifier_reg_type": "JaLC"}]}, "item_4_publisher_20": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "東京大学地震研究所"}]}, "item_4_source_id_10": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AN00162258", "subitem_source_identifier_type": "NCID"}]}, "item_4_source_id_8": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "00408972", "subitem_source_identifier_type": "ISSN"}]}, "item_4_subject_15": {"attribute_name": "日本十進分類法", "attribute_value_mlt": [{"subitem_subject": "453", "subitem_subject_scheme": "NDC"}]}, "item_4_text_21": {"attribute_name": "出版者別名", "attribute_value_mlt": [{"subitem_text_value": "Earthquake Research Institute, University of Tokyo"}]}, "item_4_text_34": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"subitem_text_value": "Departmental Bulletin Paper"}]}, "item_4_text_4": {"attribute_name": "著者所属", "attribute_value_mlt": [{"subitem_text_value": "地震研究所"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "阿部, 勝征"}], "nameIdentifiers": [{"nameIdentifier": "128038", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "高橋, 正義"}], "nameIdentifiers": [{"nameIdentifier": "128039", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2017-06-26"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "ji0622003.pdf", "filesize": [{"value": "1.3 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 1300000.0, "url": {"label": "ji0622003.pdf", "url": "https://repository.dl.itc.u-tokyo.ac.jp/record/32852/files/ji0622003.pdf"}, "version_id": "90516832-faca-46aa-af34-51443cc9ad0d"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "jpn"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "伊豆大島カルデラ床での割れ目噴火(1986年11月21日)の推移 : 写真解析による調査", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "伊豆大島カルデラ床での割れ目噴火(1986年11月21日)の推移 : 写真解析による調査", "subitem_title_language": "ja"}]}, "item_type_id": "4", "owner": "1", "path": ["4763", "4764"], "permalink_uri": "https://doi.org/10.15083/0000032852", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-05-30"}, "publish_date": "2008-05-30", "publish_status": "0", "recid": "32852", "relation": {}, "relation_version_is_last": true, "title": ["伊豆大島カルデラ床での割れ目噴火(1986年11月21日)の推移 : 写真解析による調査"], "weko_shared_id": -1}
伊豆大島カルデラ床での割れ目噴火(1986年11月21日)の推移 : 写真解析による調査
https://doi.org/10.15083/0000032852
https://doi.org/10.15083/000003285253957683-b9c8-4b0f-90cc-b19e038c90df
名前 / ファイル | ライセンス | アクション |
---|---|---|
ji0622003.pdf (1.3 MB)
|
|
Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2008-05-30 | |||||
タイトル | ||||||
タイトル | 伊豆大島カルデラ床での割れ目噴火(1986年11月21日)の推移 : 写真解析による調査 | |||||
言語 | ja | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15083/0000032852 | |||||
ID登録タイプ | JaLC | |||||
その他のタイトル | ||||||
その他のタイトル | Description of the November 21, 1986 Fissure Eruption on the Caldera Floor of Izu-Oshima Volcano, Japan : Analysis of a Series of Photographs | |||||
著者 |
阿部, 勝征
× 阿部, 勝征× 高橋, 正義 |
|||||
著者別名 | ||||||
識別子 | 128040 | |||||
識別子Scheme | WEKO | |||||
姓名 | Abe, Katsuyuki | |||||
著者別名 | ||||||
識別子 | 128041 | |||||
識別子Scheme | WEKO | |||||
姓名 | Takahashi, Masayoshi | |||||
著者所属 | ||||||
著者所属 | 地震研究所 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 1986年11月21日に伊豆大島のカルデラ床で発生した割れ目噴火について,外輪山北東端と元町郊外で撮影したスチール・フィルムなどをもとに外形上の発達の推移を調べた.三原山の山頂火口から北へ約1km離れたカルデラ床でF1が16時15分に開口し,白煙に続いて灰色の噴煙と赤熱物が噴出した.追いかけるようにF1の南東側にF2が開口した.続いて,16時27分にF3がF2の南東側に,16時40分にF4がF3の南東側にそれぞれ開口した.全体としてみれば,噴火割れ目は北西から南東に,低地から高地に向けて次々に開口した.各割れ目は開口直後に約25m/minの速さで両方向にそれぞれ拡大した.噴火割れ目からの赤熱噴出物は火のカーテンの観を呈した.F1とF2は一列の噴火割れ目になり,それとF3はミ型に雁行した.噴火の勢いは16時50分頃から著しく増大した.火柱の高さはそれまで平均15m/minで増していたが,16時50分過ぎから100m/minの速さに変わった.火柱の高さは17時10分頃に最高の1.6kmに達し,その後しだいに低くなった.火口列の全長はちょうど1.0kmに達した. | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | On the evening of November 21, 1986, new fissure eruptions occurred on the caldera floor of Izu-Oshima Volcano, Japan. The sequence of their formation is studied on the basis of time-printed photographs which were taken in succession by the authors at close range during the eruption. Shortly after 2 p.m., earthquakes began to increase in number. At 4 : 15 p. m. (7 : 15 a. m. in UT), the first eruption began with the opening of a small fissure from which gas started to rise into the air and then red-hot material spurted up. This outburst was about 1 km north of the summit pit of Mt. Miharayama. At about the same time the second outburst broke out 150 m to the southeast. At 4: 27 p.m., en echelon fissure started to open 110 m farther southeast. During the early stage of eruptions, individual fissures extended, with an average speed of 25 m/ min, both to the northwest and to the southeast across the caldera floor. Red-hot scorias with enormous clouds squirted from many points along fissures in the form of a nearly continuous line of eruptive fountains, producing a curtain of fire. The fountains gradually grew in height with an average speed of 15m/min. By 4: 40 p.m., the curtain of fire reached a height of 440 m and a length of 870 m. During the eruption, deep rumblings emanating from fountains were heard, and numerous earthquakes were felt. At 4: 40 p.m., a new eruption occurred 70 m farther southeast at the flank of Mt. Mihara-yama. On the assumption that the eruptive activity migrated to the southeast due to a rise of local dyke, an average rate of the rise is estimated to be about 3 m/ min. Shortly after 4: 50 p.m., the eruptive phase markedly increased in violence and changed form from fire fountains to some red-hot pillars. The pillars grew rapidly higher with an average velocity of 100 m/min. They reached maximum heights of 1.6 km at 5: 10 p.m. By that time, the fissure zone extended as much as 10 km long and consisted of four individual fissures 140-440 m in length. Lava from fissures spread out to form fan-shaped flows to the north-northwest and to the northeast of the caldera floor. The activity started to decline around 6 p.m. and ceased at about 11p.m., having lasted 7 hours. Although no lives were lost, a series of violent eruptions on November 21 forced all 10,000 islanders to evacuate Izu-Oshima island temporarily. | |||||
書誌情報 |
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo 巻 62, 号 2, p. 149-162, 発行日 1987-10-23 |
|||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00408972 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00162258 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
日本十進分類法 | ||||||
主題 | 453 | |||||
主題Scheme | NDC | |||||
出版者 | ||||||
出版者 | 東京大学地震研究所 | |||||
出版者別名 | ||||||
Earthquake Research Institute, University of Tokyo |