Work

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

Year: 2014

Type: article

Abstract: The permanent Global Positioning System (GPS) array in Japan detected coseismic and postseimic deformation of the 2003 Tokachi-oki earthquake (M w 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 M w 7.8.

Source: Earth Planets and Space

DOI: 10.1186/bf03352530

Authors: Shinzaburo Ozawa, Masaru Kaidzu, Makoto Murakami, Tetsuo Imakiire, Yuki Hatanaka

Institution: Geospatial Information Authority of Japan

Language: English

Topic: earthquake and tectonic studies

Subfield: Geophysics

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,640

OpenAlex ID: W2005704548