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Ground Motions & Other Information from Japan’s March 11, 2011 Earthquake – UPDATED March 15

Aerial Bridge photos (pdf file, 9.4 MB) shared by Mr. Tamakoshi, Bridge Division, National Institute for Land and Infrastructure Management (NILIM)
Posted on March 15th, 2011

Earthquake Research Institute, Japan, Information about the Tohoku Earthquake and Tsunami in English.
Posted on March 15th, 2011

Strong Ground Motion Report from National Research Institute for Earth Science and Disaster Prevention (pdf file, 9.4 MB) – This NIED report in the English language includes K-NET and KIK data.
Posted on March 15th, 2011

Visit the Kyoshin Newtwork (K-NET) website for additional data.
Posted on March 15th, 2011

View BRI’s recent strong motion data.
Building Research Institute (BRI) has released ground motion recordings from the March 11, 2011 magnitude 9.0 earthquake in the Tohoku region of northern Honshu, Japan. BRI operates 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.
Posted on March 14th, 2011

Japan is very heavily instrumented thus it is expected that many additional recordings will eventually become available.