{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390001206458466944.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.2467/mripapers.44.91"}},{"identifier":{"@type":"NAID","@value":"130004785153"}}],"dc:title":[{"@language":"en","@value":"Stress Fields due to Reverse Faults and Some Related Seismic Activities."},{"@language":"ja","@value":"逆断層による応力場と関連する地震活動"}],"dc:language":"ja","description":[{"type":"abstract","notation":[{"@language":"en","@value":"We investigate static stress fields caused by rectangular reverse faults in an elastic half-space. Numerical computations are mainly made on fracture stresses which are defined as the summation of shear stress and a certain amount of normal stress and contribute to generating fracture. We present some examples of seismic activities which seem to have occurred in accordance with the simulation, i.e., cases where earthquakes occurred in regions where the fracture stresses are theoretically expected to increase.<br>   The fracture stresses generally increase in regions adjacent to the side ends of the fault. There are a lot of cases where earthquakes were generated in adjacent regions in connection with the occurrence of big thrust type earthquakes which are typical along the Kurile trench and the Nankai trough. These are, for example, the 1944 Tonankai earthquake followed by the 1946 Nankaido earthquake which occurred at the Nankai trough, and the 1958 and 1963 Etorofu earthquakes, the 1969 Hokkaido-toho-oki earthquake and the 1973 Nemuro-hanto-oki earthquake which occurred successively along the Kurile arc.<br>   The fracture stresses increase greatly in regions extending from the fault edges to the slip directions, and in dilatational regions extending normal to the fault surface. The case where the fracture extended in its slip direction may be the 1978 Miyagi-oki earthquake which is explained to be multiple shocks caused by successive fractures on descending low-angle planes. The cases where the conjugate activities were excited may be the 1982 Urakawa-oki earthquake and the 1991 Iriomotejima swarm earthquakes. However, there remain some questions as regards these cases.<br>   There are cases where normal faults were generated near the trench after the occurrence of reverse faults. These are the 1933 Sanriku earthquake which occurred after the 1896 Sanriku and 1897 Miyagi-oki earthquake, and the series of the 1938 Shioya-oki earthquakes. Numerical computation reveals that it is possible that normal faults are induced by the occurrence of reverse faults in their dilatational regions. This is mainly caused by the reduction of the frictional stress on the fault surfaces."},{"@language":"ja","@value":"半無限均質媒質を仮定し、その中に置かれた矩形逆断層による静的変形を計算し、直交する二方向の破壊応力 (断層生成に寄与する応力として、ずり応力と一定割合の法線応力を加算したもの) の変化、また参考のためにdilatation、ずり応力の変化を求めた。さらに、その数値計算結果に符合するように生じたと思われる地震活動の事例の収集を行った。<br>　断層側端の近傍あるいはスリップの延長上、断層端より共役に膨張域に延びるあたりなどで破壊応力が増大し、その様な所で余震活動、次の断層運動などが期待される。実際、逆断層地震の発生でその隣接領域に次の破壊が発生した例は多い。千島海溝、南海トラフ等海溝沿いに、空間的、時間的に近接して巨大地震が発生するのはこの典型と言ってよい。1944年東南海地震と1946年南海道地震、また、1958年、1963年エトロフ地震、1969年北海道東方沖地震と1973年根室半島沖地震はこの例である。スリップの延長方向に破壊が延びた例としては1978年宮城県沖地震があげられよう。この地震は、低角で潜り込む面上で生じたマルチプルショックと考えられている。共役な方向で生じた地震活動の例としては、1982年浦河沖地震、1991年西表島群発地震に伴う活動があげられるが、発震機構の矛盾など問題が残る。<br>　上記の計算では、二次的に発生する活動は、もとの断層面に平行かあるいはそれに共役な向きの断層面を有する、純粋な逆断層によるものと仮定している。しかしこれとは異なって、プレートの潜り込みによる巨大逆断層地震が発生する海域側で、高角の正断層地震が発生することがいくつかの地震の解析より示されている。1933年三陸地震、1938年塩屋埼沖地震がその例である。モデル計算の結果、低角の逆断層の生成に伴って、その海域側で高角の正断層が生じ易くなることも示される。<br>　ここで収集した逆断層の生成に伴う地震活動の事例は、静弾性論に従った応力場の計算の妥当性を更に確実なものにするとともに、それが地震活動の予測にも有用であり得ることを示していると思われる。"}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410001206458466944","@type":"Researcher","personIdentifier":[{"@type":"NRID","@value":"9000283228306"}],"foaf:name":[{"@language":"en","@value":"Odaka Toshikazu"},{"@language":"ja","@value":"小高 俊一"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Meteorological Research Institute"},{"@language":"ja","@value":"気象研究所"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"0031126X"},{"@type":"EISSN","@value":"18806643"}],"prism:publicationName":[{"@language":"en","@value":"Papers in Meteorology and Geophysics"},{"@language":"en","@value":"Pap. Met. Geophys."},{"@language":"en","@value":"Pap. Meteor. Geophys."},{"@language":"en","@value":"Pap. Meteoro. Geophys."},{"@language":"ja","@value":"気象研究所研究報告"}],"dc:publisher":[{"@language":"en","@value":"Japan Meteorological Agency / Meteorological Research Institute"},{"@language":"ja","@value":"気象庁気象研究所"}],"prism:publicationDate":"1993","prism:volume":"44","prism:number":"3","prism:startingPage":"91","prism:endingPage":"104"},"reviewed":"false","availableAt":"1993","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Atmospheric%20Science","dc:title":"Atmospheric Science"},{"@id":"https://cir.nii.ac.jp/all?q=Geophysics","dc:title":"Geophysics"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360011142936841856","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Tectonic implications of the 1944 Tonankai and the 1946 Nankaido earthquakes"}]},{"@id":"https://cir.nii.ac.jp/crid/1360292617916830848","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Source mechanisms and tectonic significance of historical earthquakes along the nankai trough, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360292619552410496","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Tectonic implications of the large shioya-oki earthquakes of 1938"}]},{"@id":"https://cir.nii.ac.jp/crid/1360292621388170624","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Surface deformation due to shear and tensile faults in a half-space"}]},{"@id":"https://cir.nii.ac.jp/crid/1360574092891912704","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Seismological evidence for a lithospheric normal faulting — the Sanriku earthquake of 1933"}]},{"@id":"https://cir.nii.ac.jp/crid/1360855568471497344","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Changes in State of Stress on the Southern San Andreas Fault Resulting from the California Earthquake Sequence of April to June 1992"}]},{"@id":"https://cir.nii.ac.jp/crid/1361137044893606016","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Relationship between shallow and deep seismicity in the western Pacific region"}]},{"@id":"https://cir.nii.ac.jp/crid/1361699994737133568","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The stress field induced from the occurrence of the 1944 Tonankai and the 1946 Nankaido earthquakes, and their relation to impending earthquakes"}]},{"@id":"https://cir.nii.ac.jp/crid/1361699995147838720","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Rupture process of the Miyagi-Oki, Japan, earthquake of June 12, 1978"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981468834108160","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Lithospheric normal faulting beneath the Aleutian trench"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981471307272064","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"SECONDARY FAULTING: I. THEORETICAL ASPECTS"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544418753350016","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"The 1979 Homestead Valley Earthquake Sequence, California: Control of aftershocks and postseismic deformation"}]},{"@id":"https://cir.nii.ac.jp/crid/1362544419830401664","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Induced earthquakes in the Izu peninsula by the Izu-Hanto-Oki earthquake of 1974, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825894676094080","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"A quantitative interpretation on possible correlations between intraplate seismic activity and interplate great earthquakes along the Nankai trough"}]},{"@id":"https://cir.nii.ac.jp/crid/1362825894732118656","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"SECONDARY FAULTING: II. GEOLOGICAL ASPECTS"}]},{"@id":"https://cir.nii.ac.jp/crid/1363670319216204800","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Friction of rocks"}]},{"@id":"https://cir.nii.ac.jp/crid/1363951793621147008","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Change in Failure Stress on the Southern San Andreas Fault System Caused by the 1992 Magnitude = 7.4 Landers Earthquake"}]},{"@id":"https://cir.nii.ac.jp/crid/1364233270050096128","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Response of Regional Seismicity to the Static Stress Change Produced by the Loma Prieta Earthquake"}]},{"@id":"https://cir.nii.ac.jp/crid/1364233270461114880","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Off-fault aftershock clusters caused by shear stress increase?"}]},{"@id":"https://cir.nii.ac.jp/crid/1364233271040840832","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Changes in static stress on southern California faults after the 1992 Landers earthquake"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001204303159680","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"茨城県地域に見られるペア地震現象"},{"@language":"en","@value":"Paired Earthquakes in the Ibaraki Region, Central Japan"},{"@language":"ja-Kana","@value":"イバラキケン チイキ ニ ミラレル ペア ジシン ゲンショウ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282679281526656","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"ja","@value":"一軸圧縮過程のウエスタリー花崗岩から放出されるラドン濃度の変動 (1)"},{"@language":"en","@value":"An Experimental Study on Variation of Radon Emanation from Westerly Granite under Uniaxial Compression Part 1"},{"@value":"1軸圧縮過程のウエスタリー花崗岩から放出されるラドン濃度の変動-1-"},{"@language":"ja-Kana","@value":"1ジク アッシュク カテイ ノ ウエスタリー カコウガン カラ ホウシュツサレ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681435721088","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Stress Fields due to Strike-slip Faults, Tensile Faults and Cylindrical Soft Bodies, and Related Seismic Activities."},{"@language":"ja","@value":"横ずれ断層、開口断層、円筒状変形体による応力場と関連する地震活動"}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681486605696","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Re-examination of fault model for the 1982 Urakawa-oki earthquake by analyses of seismic, geodetic, and Tsunami data."}]},{"@id":"https://cir.nii.ac.jp/crid/1390282681487167744","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Velocity structure and aftershock distribution of the 1982 Urakawa-Oki Earthquake."}]}],"dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:0002647606"},{"@type":"CROSSREF","@value":"10.2467/mripapers.44.91"},{"@type":"CIA","@value":"130004785153"}]}