To investigate the precise crustal deformation in the Taisetsu mountains, Central Hokkaido, Japan, we have
conducted GPS survey in 1998 and 1999. The coordinates at summit peaks of the mountain chain, horizontal
displacements and strain are evaluated in this period. Major results are summarized as (1) horizontal displacements
at the summit peaks are about 2 cm in the direction of north, (2) horizontal strain is estimated to be compressional in
the NW-SE direction. Although the precision of the estimates awaits for the future survey, this results are consistent
with the direction of the compressional axes of focal mechanism solutions of local earthquakes in the surrounding
region and with the deformation vector by the triangulation in central Hokkaido.
To investigate the precise crustal deformation in the Taisetsu mountains, Central Hokkaido, Japan, we haveconducted GPS survey in 1998 and 1999. The coordinates at summit peaks of the mountain chain, horizontaldisplacements and strain are evaluated in this period. Major results are summarized as (1) horizontal displacementsat the summit peaks are about 2 cm in the direction of north, (2) horizontal strain is estimated to be compressional inthe NW-SE direction. Although the precision of the estimates awaits for the future survey, this results are consistentwith the direction of the compressional axes of focal mechanism solutions of local earthquakes in the surroundingregion and with the deformation vector by the triangulation in central Hokkaido.
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