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Fig. 7 | Earth, Planets and Space

Fig. 7

From: Objective detection of long-term slow slip events along the Nankai Trough using GNSS data (1996–2016)

Fig. 7

Horizontal unsteady displacements and estimated slip distribution in eastern Shikoku and Kii Channel for the period January 2000 to January 2003. a Horizontal displacements used for estimating slip. Black arrows indicate observations, and white arrows indicate calculated values. Ellipses at the top of arrows indicate 2σ errors inferred from standard deviations of coordinates over a 1-month period. b Estimated slip distribution. Slip arrows indicate the motion of the overriding plate with respect to the subducting Philippine Sea plate. Small circles at the tips of arrows indicate the estimation errors. Gray shading indicates the area where the slip amount is smaller than the error. Green circles indicate epicenters of deep low-frequency earthquakes from January 2000 to January 2003 of the Japan Meteorological Agency earthquake catalog. Contours show the depth of the top of the subducting Philippine Sea plate (Hirose et al. 2008)

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