Japanese researchers create tsunami simulation after Russia quake
The group is led by Professor Imamura Fumihiko from Tohoku University's International Research Institute of Disaster Science.
The simulation shows how tsunami waves changed course after hitting an underwater feature called the Emperor Seamount Chain.
A tsunami measuring 1.3 meters was seen at Kuji Port along Japan's northeastern Sanriku coast more than five hours after the quake. The simulation suggests reflected waves reached the area at around that time.
Professor Imamura says tsunami are unpredictable, and knowing when to issue and lift advisories can be difficult.
He also says people should always try to follow the latest information.
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