There is a 70% chance of a large earthquake hitting Tokyo within 30 years, govt put out a survival guide based on past experience, some interesting, useable tips here in the link and you can link to the whole guide too
http://www.outsideonline.com/204968...ness-guide-can-teach-you-about-urban-survival
http://www.outsideonline.com/204968...ness-guide-can-teach-you-about-urban-survival