Kyushu Region

a)On April 29, there was seismic activity including an M4.0 event (maximum seismic intensity: 4) in the area of Beppu Bay [central Oita Prefecture].
b)On April 2, there was moderately deep-focus M4.5 event (maximum seismic intensity: 3) in the northern foothills region of Miyazaki Prefecture.

Note: Within square brackets ([ ]) is the epicenter place name used by the Meteorological Agency in its information releases

Note:
M=magnitude
N: total number of events in the figure
depth=depth of hypocenter
UND=Earthquakes of less than M1.0 and earthquakes whose magnitude was not recorded.
The key to the symbols shows on the left the size of an earthquake and on the right the depth of the hypocenter.

Japan Meteorological Agency,Science and Technology Agency

Seismic Activity in Japan April 2000