Kinki-Chugoku-Shikoku Region

a) Aftershocks to the 2000 Western Tottori Earthquake are gradually subsiding. However, on December 7th there was an M4.2 aftershock, and at 6:18 a.m. on December 19th, there were two M4.1 aftershocks (all of these events had maximum seismic intensities of 4).

In addition, although it occurred outside of the period under discussion, on January 9th there was an M4.6 event in the Iyo-nada (maximum seismic intensity: 4).

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.