On the Polar Motion Excitations by Recent Mega-thrust Earthquakes

DOI HANDLE Web Site 16 References Open Access

Bibliographic Information

Other Title
  • 最近の大地震による極運動の励起について
  • サイキン ノ ダイジシン ニ ヨル キョクウンドウ ノ レイキ ニ ツイテ

Search this article

Description

The Earth’s spin axis moves by various factors, and mass redistribution associated with seismic faulting is also expected to contribute to this movement. However, there have been no space geodetic observations of coseismic polar motion excitations to date. In this study, we analyze the time series of the excitation functions of the polar motion, and try to detect steps due to the three recent M9 class earthquakes, i.e. the 2004 Sumatra-Andaman, the 2010 Chile （Maule）, and the 2011 Tohoku-Oki earthquakes. For the 2010 Chile earthquake, a significant step was detected but was not consistent with the anticipated direction.

Journal

References(16)*help

See more

Details 詳細情報について

Report a problem

Back to top