Vector chart (horizontal)

There were some changes associated with the eruption in the vicinity of Mt. Usuzan, but they did not affect a wide area.

Comparative method: average value
Standard data: 1999/4/1 - 1999/4/5
Comparative data: 2000/4/3 - 2000/4/17
Black:Bernese[IGS]

Geographical Survey Institute

Seismic Activity in Japan April 2000