Central Honshu


a) An M4.2 earthquake occurred on 5 Nov in northern Ibaraki Pref. (maximum intensity: 3).

b) There occurred in Northwestern Chiba Pref. On 8 Nov an M4.6 earthquake (depth: 80km; maximum intensity: 4) and on 28 Nov an M4.3 earthquake (depth: 70km; maximum intensity: 3).

c) An M4.0 earthquake occurred on 25 Nov in the Reihoku region of Fukui Pref. (Maximum intensity: 3).

d) Seismic activity continues on a minor scale in November on the border of Nagano and Gifu prefs. And the border of Nagano and Toyama prefs., centering on the vicinity of Kamikochi (largest earthquake in November: M3.3).

e) An M4.7 earthquake occurred on Nov 16 offshore of Noto Peninsula (maximum intensity: 3). This earthquake occurred in the aftershock zone of the 1993 M6.6 earthquake offshore of Noto Peninsula.


Japan Meteorological Agency,Science and Technology Agency


Seismic Activity in Japan during November, 1998