Seismic activity by period, after the M6.4 event near Kozushima (1)

Following the Kozushima earthquake, aftershock activity in the immediate aftershock zone was at a relatively low level, but seismic activity subsequently moved into the area between Kozushima and Miyakejima, and after July 4th had returned to Kozushima at an active level.

Japan Meteorological Agency

Seismic Activity in Japan June 2000