Japan Earthquakes — There have been approximately 54 earthquakes of magnitude 4.1 or greater in Japan from April 14 to April 19, 2016 (at the time of this posting). These events have led to casualties and significant destruction.
The mainshock (largest earthquake in this series) was a magnitude 7.0 earthquake on April 15 at 16:25 UTC. Since that mainshock, there have been 35 aftershocks. Aftershocks will continue for the coming days, weeks and likely months. The chance of larger earthquakes in this regions is small, but not zero. One day before the mainshock, there was a series of foreshocks in the same region, which included magnitude 6.2 and 6.0 earthquakes.
USGS scientists are providing up-to-date information and real-time monitoring on earthquake activity and associated hazards to ultimately help reduce risks to life and property. Learn more about this event at: http://