Our hearts go out to those in Kansai who experienced this morning a 5.9 quake. In fact, the quake may be related to ours due to what is called the Japan Median Tectonic Band. Japan is kinda split into two in an east/west direction, and activity on the fault in one section may result in increased tensions in another. Wikipedia has an informative article on it . - William https://en.wikipedia.org/wiki/Japan_Median_Tectonic_Line