Initial post-quake tsunami warning system worked — but people need to stay alert, expert says
Katsu Goda, a Canada research chair and expert on earthquakes, tsunamis and risk assessment, took questions on what people need to know when officials trigger tsunami alerts and warnings. Read more: http://www.cbc.ca/news »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS Connect with CBC News Online: For breaking news ...
