No details as yet, more to come.

  • Earthquake described as ‘strong’
  • NHK reports preliminary magnitude of 6.9
  • NHK reports no worries of tsunami after earthquake

From the comments (below):

Seems no damage here, but this was one where you moved to what you consider to be the safest place. Good shaking (but not severe), lasting more than 30 seconds.

ADDED – update: USGS reports earthquake in southern Japan has preliminary magnitude of 6.4