UPDATE: Japan Meteorological Agency says even though the scale of the tremors has become much smaller compared to the ones right a

UPDATE: Japan Meteorological Agency says even though the scale of the tremors has become much smaller compared to the ones right after the magnitude-9.0 March 11 earthquake, seismic activities are still active enough to cause an M.7-class earthquake once a year.

http://www.japantimes.co.jp/news/2016/11/22/national/m7-4-earthquake-off-fukushima-triggers-widespread-tsunami-alert/#.WDOsmYdOkwi