On the evening of 13 May, the Central American country Costa Rica, was hit by a 6.0 quake. The epicenter is near the Arenal volcano.
Then, in the early morning of 14 May, Japan was hit by a 6.2 quake (some reports say 5.7), near the same spot as 11 March 9.0 earthquake, off the coast of Fukushima. Initially a tsunami warning was issued, but was canceled. No word on any damage to the nuke plants in Fukushima.