I’ll add more to this post in due course, but I hope this information will be useful for you now. Most Japanese people are trained in schools how to respond during earthquakes. Despite the disaster preparedness and rehearsals even in most companies, there were still some bad decisions made on the 11th March 2011 earthquake and ensuing tsunami and nuclear disaster.
In light of this, information is still important. The first thing I’d like to share is this link. It’s the Real-time Earthquake Monitor. It’s a constantly updating website made especially for smartphone screens. It shows where there is movement in the earth, and importantly shows the radiating spread of quake ripples and their strength. Here’s the link: http://realtime-earthquake-monitor.appspot.com
As I said, more information will be added later.