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  1. 131 地震研究所
  2. 東京大学地震研究所彙報
  3. 54
  4. 2
  1. 0 資料タイプ別
  2. 30 紀要・部局刊行物
  3. 東京大学地震研究所彙報
  4. 54
  5. 2

山梨県最南部周辺の極微小地震活動(1)

https://doi.org/10.15083/0000033108
https://doi.org/10.15083/0000033108
a3cd3011-408c-42ec-ba01-e68499794fd7
名前 / ファイル ライセンス アクション
ji0542004.pdf ji0542004.pdf (733.6 kB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2008-05-30
タイトル
タイトル 山梨県最南部周辺の極微小地震活動(1)
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 10.15083/0000033108
ID登録タイプ JaLC
その他のタイトル
その他のタイトル Microearthquake Activity in the Southernmost Part of Yamanashi Prefecture, Central Japan (1)
著者 渡辺, 茂

× 渡辺, 茂

WEKO 129122

渡辺, 茂

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岡田, 義光

× 岡田, 義光

WEKO 129123

岡田, 義光

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著者別名
識別子Scheme WEKO
識別子 129124
姓名 Watanabe, Shigeru
著者別名
識別子Scheme WEKO
識別子 129125
姓名 Okada, Yoshimitsu
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 The location of the Fujigawa Crustal Movement Observatory is quite near to the Itoigawa-Shizuoka tectonic line, Mt. Fuji, Mt. Akashi and the Suruga Bay. Despite its geographical significance, microearthquake observation has been carried out only at one station so far, from which we could not know more than S-P distribution about the seismicity of this region. To remedy this situation, tripartite observation was begun in June, 1978. Prior to the start of observation, all IC type pre-main-power amplifiers and crystal clocks which can be corrected with time signals from a radio receiver were newly designed and constructed. As a first step, by assuming semiinfinite medium, focal locations were decided geometrically with P-times of three stations and S-P times of one station, UMJ. The following features can be pointed out from obtained epicentral distribution. (1) A seismic zone which has a NE-SW trend is clearly seen. Although this trend does not coincide with the geological one, it may harmonize with a general trend of seismicity in a wider area around the tripartite. (2) Along the Itoigawa-Shizuoka tectonic line, can be seen rather high seismicity although it is considerably scattered and obscure. (3) The seismicity near Mt. Fuji and Mt. Akaishi seems to be low, and also in the region of the mouth of the Fuji River, which is the innermost part of the Suruga Bay. As to the seismicity along the southern part of the Itoigawa-Shizuoka tectonic line, one interesting fact was found by use of JMA data. The seismic activity in this area was quite silent within the interval from 1969 to 1973. Each of these two nodal years, 1969 and 1973 corresponds to an epoch marking a fact that the crustal movement in the central part of Japan has notably changed its general tendency.
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 54, 号 2, p. 317-327, 発行日 1979-12-25
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Scheme NDC
主題 453
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
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