Movement of hypocenters
Figure below shows the average of the epicenters which were manualy determined every one hour. The figure shows that earthquakes occured in MIYAKEJIMA moved to the west. The movemnet speed of hypocenters which occured from 3 o'clock to 5 o'clock on June 27 was about 2km/hour. In addition, earthquakes had been passed the discloloration region of the sea of IGAYA at this time.
- * Hypocenter data from 18 o'clock June 26 to 10 o'clock July 4 was used.
(Earthquake Observation Center, Earthquake Information Center)
(Re-determined Hypocenters)