Base-line-length variation graph

[Left] Period: 25 July 1994 to 21 January 1999

[Right] Period: 1 October 1998 to 6 February 1999

Coordinate system: WGS84

Solid circle---- Bernese [IGS Calendar]

Open circle ---- Bernese [Combination Calendar]

Geographical Survey Institute

Seismic Activity in Japan January, 1999