It appears there may have been another emission event the evening of July 3, 2015 (Japan time), as documented by webcam watchers at Enenews.com:
Discussion Starts Here at Enenews forum
Flying Cuttlefish took a number of screenshots, including one of more police at the Futaba intersection:
It is unusual to have two "significant" events, as defined by what appear to be very high emissions, in such a short time period. I hope people in north east Japan and under the jet stream are monitoring radiation levels.