Earthquake near Taiwan on June 2

On June 2, 2013 at 14:43 (JST), there was a M6.3 earthquake near Taiwan (central Taiwan). This event had maximum seismic intensity 1 in Japan.
The focal mechanism (CMT solution) showed a reverse fault with a compression axis in a WNW-ESE direction.
For the seismic activity since October 1997, in the vicinity of the recent event (Area a), there was the 1999 Chi-Chi Earthquake (M7.7, maximum seismic intensity 2 in Japan) on September 21, 1999. In addition, on March 27, 2013, there was a M6.1 earthquake (no seismic intensities 1 or over observed in Japan)

For the seismic activity since January 1970, in the region around the recent event (Area b), there was a M7.8 earthquake (maximum seismic intensity 3 in Japan) on November 15, 1986. This event caused damage with 13 fatalities and 45 injured persons in Taiwan, and caused tsunamis with a height of 30 cm at Hirara, Miyakojima. In addition, the 1999 Chi-Chi Earthquake (M7.7) that occurred on September 21, 1999 (maximum seismic intensity 2 in Japan) caused damage with 2,413 fatalities and 8,700 injured people in Taiwan (damage from Utsu's List of World Destructive Earthquakes) (magnitudes from U.S. Geological Survey).

Japan Meteorological Agency
[Evaluation of Seismic Activities for May 2013 (June 11, 2013)]