Special Issue: Application of GPS and other space geodetic techniques to Earth Sciences (2)
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Crustal movements around the Beppu Bay area, East-Central Kyushu, Japan, observed by GPS 1996–1998
Earth, Planets and Space volume 52, pages 979–984 (2000)
Abstract
In order to detect the crustal movement in the Beppu Bay area, where the highest intra-plate strain rates in Japan is expected, precise GPS measurements have been repeatedly conducted since 1994 at one-year intervals. The result shows N-S or NNE-SSE extension taking place at a rate of more than 10 mm/yr around Beppu Bay. This is essentially consistent with the result obtained by the geodetic survey conducted over the last 100 years, and it suggests a constant rate of crustal motion over the period. The result gives a strong constraint for future modeling of the stress field recovery in the area. However, we failed to identify whether the movement occurred at any specific fault. A denser array of GPS points is needed in the area, and especially near the major faults, in order to investigate possible fault-related motion.
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Fukuda, Y., Itahara, M., Kusumoto, S. et al. Crustal movements around the Beppu Bay area, East-Central Kyushu, Japan, observed by GPS 1996–1998. Earth Planet Sp 52, 979–984 (2000). https://doi.org/10.1186/BF03352316
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DOI: https://doi.org/10.1186/BF03352316