Application of GPS Kinematic Method for Detection of Crustal Movements with High Temporal Resolution
Geographical Survey Institute (GSI) established the GPS Regional Array for PrEcise Surveying (the Grapes) and started the operation from October, 1994. Since the start of the operation, three large earthquakes took place in Japan; the 1994 Kurile Islands (Hokkaido-Toho-Oki) earthquake (M8.1), the 1994 Far-Off-Sanriku earthquake (M7.5), and the 1995 Kobe earthquake (M7.2). We applied a post-processing kinematic analysis for the GPS data from these earthquakes to investigate crustal deformations with high temporal resolution. We will discuss the possibility of using a dense GPS array as seismographs for monitoring crustal deformation in a seismo-geodetic band.
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