Hokkaido Region

a)On September 3rd, there was an M5.2 event in the active zone of the 1994 earthquake that occurred in the sea east of Hokkaido. Also, in approximately the same location, there was an M6.8 event on January 28th, and an M5.7 event on August 16th.

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 September 2000
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