Interesting post about Japan earthquake early warning system

Sismordia has posted a really interesting description of Japan's earthquake early warning system. At the end, she asks for comments:

Call for comments: Are you living in Japan, or do you know people who are? Have you (or they) had to react to an Earthquake Early Warning yet? If so, please let me know how it worked, what went through your mind, what you did to prepare for the shaking, how you felt afterwards.

I'm curious, too, so if you know anyone who has experienced the system, please go over to her blog and describe your experiences.