An earthquake measuring magnitude 6.4 off the east coast of Honshu

  • An undersea earthquake
  • USGS report, Reuters headline
  • Epicentre 232km southeast of Tokyo
  • At a shallow depth of 10km
  • No tsunami alert issued says the Japan Meteorological Agency. The agency says there may be a slight change in sea level but not enough to cause damage in Japan
  • The Pacific Tsunami Warning Centre in Hawaii have not issued a tsunami alert either

pic via earthquake-report.com

And, via USGS: