Today, 4/11/11, on the one-month anniversary of their great quake, Japan experienced a 6.6 aftershock and has had 22 significant aftershocks since then. The epicenter of the 6.6 aftershock was 50 miles south of Fukushima and 101 miles northeast of Tokyo, and was a much more shallow quake than most. Unfortunately, the shallow quakes cause more shaking and more damage. See the list of aftershocks on 4/11/11 below. The big shock is in red. (See my previous post on “What does 9.0 Mean?” for a scale of earthquake damage that can be caused by various earthquake intensities.
The Fukushima Power Plant was again evacuated as a safety precaution when power was interrupted, and the zone around the damaged plant has expanded to include five villages outside the current evacuation zone.
I’m going to direct you to a YouTube video that shows just how violent a 6.6 quake is. It must be nerve-wracking, living with the constant aftershocks and never knowing when the next one will come. My heart continues to go out to the people of Japan. Here’s the link to YouTube. This link will not permit me to embed the video. http://www.youtube.com/watch?v=RXErhpH0Tk4