Coseismic and postseismic crustal deformation after the Mw 8 Tokachi-oki earthquake in Japan

The permanent Global Positioning System (GPS) array in Japan detected coseismic and postseimic deformation of the 2003 Tokachi-oki earthquake (Mw 8). We estimate the time evolution of its postseismic slip, together with its coseismic slip distribution. The result shows that the postseismic slip has...

Full description

Saved in:
Bibliographic Details
Published inEarth, planets, and space Vol. 56; no. 7; pp. 675 - 680
Main Authors Ozawa, Shinzaburo, Kaidzu, Masaru, Murakami, Makoto, Imakiire, Tetsuo, Hatanaka, Yuki
Format Journal Article
LanguageEnglish
Published Heidelberg Springer Nature B.V 2004
Subjects
Crustal deformation
Deformation
Earthquakes
Global positioning systems
GPS
Seismic activity
Slip
Online AccessGet full text

Cover

More Information
Summary:The permanent Global Positioning System (GPS) array in Japan detected coseismic and postseimic deformation of the 2003 Tokachi-oki earthquake (Mw 8). We estimate the time evolution of its postseismic slip, together with its coseismic slip distribution. The result shows that the postseismic slip has been occurring mainly in an area adjacent to the coseismic slips, propagating to the northeast and southwest. This suggests that, as of March 6, 2004, the postseismic slip of the strongly coupled area neighboring the coseismic rupture partly released seismic moment, equivalent to an earthquake of Mw 7.8.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1343-8832
1880-5981
DOI:10.1186/BF03352530