National Geographic 國家地理頻道 - 311日本地震大剖析
http://www.youtube.com/watch?v=wfYK9BESg2Q&feature=relatedhttp://www.youtube.com/watch?v=WIBDdHITqUc&feature=related
http://www.youtube.com/watch?v=Y2xid5GkGKY&feature=related
http://www.youtube.com/watch?v=s02CXIZkPjc&feature=related
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