{"created":"2021-03-01T06:51:31.420758+00:00","id":32809,"links":{},"metadata":{"_buckets":{"deposit":"7fcf5a29-f99e-43e9-93df-a41d1f3ac505"},"_deposit":{"id":"32809","owner":"1","owners":[],"pid":{"revision_id":0,"type":"depid","value":"32809"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00032809","sets":["80:4535:4737:4745","9:504:4538:4739:4746"]},"author_link":["127729","127728"],"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Estimate of Tsunami heights from Magnitudes of Earthquake and Tsunami"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1989-06-30","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"69","bibliographicPageStart":"51","bibliographicVolumeNumber":"64","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":"津波マグニチュードMtの決定式と地震断層パラメターの相似則に基づいて,地震のマグニチュードから津波の高さを予測する方法を導く.その際にマグニチュードや津波高の基本的性質および津波励起の地域性を適当に考慮することによって予測の精度を高める.特異な津波地震を除いて,関係式log Ht=Mw-log Δ-5.55+Cから得られる予測高Ht(m)は津波の伝播距離Δ(km)付近での区間平均高を近似し,2Htはその付近での最高値を近似する.区間平均高の最大値は簡単な関係式logHr=0.5Mw-3.3+Cから得られる予測高Hr(m)で見積られる.ここにMwは地震のモーメント・マグニチュード,Cは定数であり,太平洋側の津波にはC=0,日本海側の津波にはC=0.2がそれぞれ適用される.適切な考慮のもとではMwの代わりに表面波マグニチュードや気象庁マグニチュードを利用することができる.地震直後の迅速な予測に利用できるようにこれらの関係式を一枚の予測ダイアグラムにまとめることができる.一方,遠地津波に対する予測式はlog Ht=Mw-Bによって与えられる.定数Bの値として,南米からの津波にはB=8.8,アラスカやアリューシャンからの津波にはB=9.1,カムチャッカや千島からの津波にはB=8.6がそれぞれ適用される.予測法の信頼性を検討するために,過去の津波について実測高と推定値とを統計的に比較してみると,大局的にみる限り,両者間のばらつきの程度は津波数値シミュレーションの場合とそれほど違わない.","subitem_description_type":"Abstract"},{"subitem_description":"A method for estimating tsunami run-up heights from earthquake magnitudes is developed by taking account of the definition of the tsunami magnitude Mt and the scaling relation of earthquake fault parameters. Except for unusual tsunami earthquakes, the local-mean height Ht(m) can be estimated from the relation log Ht=Mw-log Δ-5.55+C, and the maximum local-mean height Hr(m) for large tsunamis can be estimated from the relation logHr=0.5Mw-3.30+C, where Mw is the moment magnitude, Δ(km) is the distance along the shortest oceanic path from the epicenter to an observation point, and C is the constant. This constant is taken to be C=0 for tsunamis in the Pacific and C=0.2 for tsunamis in the Japan Sea. The locally maximum run-up height is estimated to be as high as 2Ht. For earthquakes around Japan, it is practically convenient to use Ms or local magnitude instead of Mw with caution. The local-mean height from distant tsunamis can be estimated from the relation logHt=Mw-B, where B=8.8 for tsunamis from Peru and Chile, B=9.1 for tsunamis from Alaska and Aleutians, and B=8.6 for tsunamis from Kamchatka and Kurile Islands. The results from the present method are consistent with a number of data available for previous tsunamis. For near-field tsunami warning purposes, the relationships discussed here are summarized into a simple diagram that might be useful for the rapid estimate of tsunami run-up heights from earthquake magnitudes.","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"127729","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Abe, Katsuyuki"}]}]},"item_4_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15083/0000032809","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_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":"127728","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","filename":"ji0641003.pdf","filesize":[{"value":"1.1 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"ji0641003.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/32809/files/ji0641003.pdf"},"version_id":"14ddb05a-6b7a-4f7d-8845-4ba49d45ee24"}]},"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":"地震と津波のマグニチュードに基づく津波高の予測","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"地震と津波のマグニチュードに基づく津波高の予測","subitem_title_language":"ja"}]},"item_type_id":"4","owner":"1","path":["4745","4746"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2008-05-30"},"publish_date":"2008-05-30","publish_status":"0","recid":"32809","relation_version_is_last":true,"title":["地震と津波のマグニチュードに基づく津波高の予測"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-12-19T05:38:02.396207+00:00"}