Kanto-Chubu Region

a)On September 9th, there was an M4.2 event within the Philippine Sea Plate in eastern Saitama Prefecture [southern Saitama Prefecture].

b)On September 29th, there was an M4.5 event (maximum seismic intensity 4) near the upper surface of the Pacific Plate in eastern Kanagawa Prefecture. There was also an M4.1 aftershock on the same day.

c)The seismic activity in the area from Niijima-Kozushima to Miyakejima has quieted, but on September 11th there was an M5.3 event (maximum seismic intensity 5 lower) about 5 km west of Toshima.

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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