GPS 観測による神津島島内における地殻変動 (1996年7月-1997年11月)

DOI Web Site 被引用文献1件 参考文献30件

書誌事項

タイトル別名
  • Crustal Movements in Kozu Island, Izu Islands in Southern Central Japan, Detected by GPS Measurements (July, 1996-November, 1997)
  • GPS カンソク ニ ヨル コウズシマトウ ナイ ニ オケル チカク ヘンドウ 1996ネン 7ガツ 1997ネン 11ガツ

この論文をさがす

抄録

Kozu Island volcano, one of the active volcanoes in Izu islands, erupted on a massive scale about 1,000 years ago. After that no volcanic eruption and activity has been recorded in Kozu Island. As the horizontal displacements observed by GPS measurements at Kozu GPS station show a disagreement with the plate motion estimated from the plate model of the Philippine Sea plate, we occupied local GPS network in Kozu Island to discuss the crustal movements. Four GPS campaigns have been repeated since July 1996 to November 1997. Through the campaigns, the horizontal displacements of one to five cm/yr and the vertical movements of two cm/yr are detected in the network. As observed convergence vectors at Zenisu reef and Hachijo Island located south of the Kozu Island show good consistency with the displacements estimated by a plate motion model, local displacements are deduced from the displacements estimated by the plate model and the observed displacements at Kozu Island. Local displacements suggest the south- or southwestward displacements of three to five cm/yr. Tilting of 5×106 radian/yr to the south is also detected by the measurements. The location of the source for the crustal movements is estimated in the northeastward in or off Kozu Island.

収録刊行物

  • 火山

    火山 44 (1), 13-22, 1999

    特定非営利活動法人 日本火山学会

被引用文献 (1)*注記

もっと見る

参考文献 (30)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ