Base-line-length variation graph


[Left] Period: 25 July, 1994 to 24 December, 1998

[Right] Period: 1 September, 1998 to 9 January, 1999

Coordinate system: WGS84

Filled dot---- Bernese [IGS Calendar]

Circle ---- Bernese [Combination Calendar]


Geographical Survey Institute


Seismic Activity in Japan during December, 1998