The new temblors in northeastern Japan strike within a span of 10 minutes with magnitudes of 7.1, 6.0 and 5.6. They come as the government announces plans to expand the evacuation area near the crippled Fukushima Daiichi nuclear power plant.
http://www.latimes.com/news/nationworld/world/la-fg-japan-earthquake-20110412,0,2410014.story