Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Science / Faculty of Science >
Peer-reviewed Journal Articles, etc >
最近の大地震による極運動の励起について
Title: | 最近の大地震による極運動の励起について |
Other Titles: | On the polar motion excitations by recent mega-thrust earthquakes |
Authors: | 小林, 裕太1 Browse this author | 日置, 幸介2 Browse this author →KAKEN DB |
Authors(alt): | Kobayashi, Yuta1 | Heki, Kosuke2 |
Issue Date: | 2012 |
Publisher: | 日本測地学会 |
Journal Title: | 測地学会誌 |
Volume: | 58 |
Issue: | 2 |
Start Page: | 89 |
End Page: | 93 |
Abstract: | 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. |
Type: | article (author version) |
URI: | http://hdl.handle.net/2115/50703 |
Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
|
Submitter: 日置 幸介
|