2016 Fukushima earthquake struck Japan with a moment magnitude of 6.9 east-southeast of Namie , Fukushima Prefecture at 05:59 JST on November 22 ( 20:59 Nov 21 UTC ) , at a depth of . The shock had a maximum intensity of VII '' ( Very strong ) '' on the Mercalli scale . The earthquake was initially reported as a 7.3 magnitude by Japan Meteorological Agency , which was later upgraded to a 7.4 , while the United States Geological Survey and GFZ Potsdam determined a magnitude of 6.9 . It was reported to be an aftershock of the 2011 earthquake
2011 earthquake
2011 Tōhoku earthquake and tsunami
2016 Fukushima earthquake