桜島火山における繰り返し相対重力測定（2019年5月-2020年3月）

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タイトル別名
  • Repeated Relative Gravity Measurements in Sakurajima Volcano (May 2019 – March 2020)

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抄録

Relative gravity values were repeatedly measured at 21 gravity points in and around Sakurajima Volcano in May, July, September, December 2019 and March 2020, to monitor spatiotemporal mass variations associated with volcanism. The relative gravity values measured from 2006 to 2020 showed a clear increase in the central part of the volcano by up to +4.7 µGal/yr. The gravity increase can be explained by the point mass increase of 1.9×1010 kg/yr under the Kita-dake summit at the depth of 3 km below sea level. This result implies that volcanic mass continuously increases under Sakurajima Volcano, even during the quiet period of eruptive activities at the Minami -dake crater.

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詳細情報 詳細情報について

  • CRID
    1050569159968966400
  • NII論文ID
    120006950378
  • NII書誌ID
    AN00027784
  • ISSN
    0386412X
  • HANDLE
    2433/260813
  • 本文言語コード
    ja
  • 資料種別
    departmental bulletin paper
  • データソース種別
    • IRDB
    • CiNii Articles

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