1990年代の太平洋西縁域における地震活動の異常な活発化 Anomalous Seismic Activity in the Western Peripheral Region of the Pacific Ocean in 1990s

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抄録

Seismic activity in and around the Japanese islands was conspicuously high in the mid1990s. Further, a number of large earthquakes occurred around the Philippine islands in the early 1990s, and then, around Kalimantan, Sulawesi, Java, and western New Guinea islands. We show that the seisimic activity in the western peripheral region of the Pacific Ocean in 1990s was so remarkable that it contributed substantially to the notable increase of seismic energy released in 1995-1996 worldwide. The activity seems to have started in the region near the Philippine islands. It is improbable, however, that the successive occurrence of large earthquakes in the western peripheral region of the Pacific Ocean was triggered by the impact of one particularly big event such as the 1990 Philippine earthquake or the huge 1991 eruption of Mt. Pinatubo. Instead, we think that the activity might be produced by a slow tectonic event that lasted for a few years and had a spatial scale of several thousands of kilometers.

収録刊行物

  • 地學雜誌

    地學雜誌 111(3), 395-403, 2002

    学術雑誌目次速報データベース由来

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各種コード

  • NII論文ID(NAID)
    10008701895
  • NII書誌ID(NCID)
    AN00322536
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    0022135X
  • NDL 記事登録ID
    6197201
  • NDL 雑誌分類
    ZM41(科学技術--地球科学)
  • NDL 請求記号
    Z15-169
  • データ提供元
    CJP書誌  CJP引用  NDL  NII-ELS  J-STAGE 
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