Title: National radioactivity concentration
Date: Feb. 15, 2012
Graphed data created based on reports from [...] http://radioactivity.mext.go.jp/ja/monitoring_by_prefecture/
All MEXT monitoring stations in and around the Greater Tokyo Area showed significant spikes in radiation. This includes Tokyo (Shinjuku), Saitama, Kanagawa, Chiba, and Ibaraki.
Earthquakes in the region on Feb. 14
Published: February 15th, 2012 at 10:59 am ET