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Large Earthquake Strikes Hokkaido, Japan

Citation

Coffin, MF and Hirata, N, Large Earthquake Strikes Hokkaido, Japan, EOS, Transactions American Geophysical Union, USA, 84, 42, pp. 442-443. (2003) [Newspaper Article]

Abstract

On 26 September 2003,a magnitude 8.0earthquake,Earth’s most powerful in 2.5 years,struck offshore Tokachi,Hokkaido,Japan,at0450 local time.The hypocenter was at 40 kmdepth along the boundary of the Pacific andNorth American plates (www.jma.go.jp).Thefocal mechanism shows a reverse fault with anorthwest-southeast compressionalaxis (P-axis)(see http://www.bosai.go.jp).Following the main shock,named "Heisei 15Tokachioki-jishin,"seismic activity has continuedin the region.As of 30 September,the largestaftershock was M7.1 on 26 September at 0608.Tsunamis were observed on the Pacific coastof Hokkaido and the Tohoku region,includingwaves of 1.2 m at Kushiro,1.3 m at Urakawa,and 1.0 m at Hachinohe.

Item Details

Item Type:Newspaper Article
Research Division:Earth Sciences
Research Group:Geology
Research Field:Marine Geoscience
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Earth Sciences
Author:Coffin, MF (Professor Mike Coffin)
ID Code:75294
Year Published:2003
Deposited By:IMAS - Directorate
Deposited On:2012-01-20
Last Modified:2012-01-20
Downloads:0

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