Welcome

Welcome to the Building Research Institute (BRI) strong motion obsearvation web site. We have been conducting strong motion observation for building structures since 1957.

Currently, we are operating more than seventy strong motion stations deploying in major cities throughout Japan. One third of the stations are placed in Tokyo metropolitan area and its outskirts.

This web site provides recent strong motion data and information related to the strong motion observation.

station map

The 2011 East Japan Earthquake

Information on the 2011 East Japan (off the Pacific coast of Tohoku) Earthquake of March 11, 2011 (Mw=9.0, h=24 km)

Recent strong motion reports

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Recent topics