Fig. 2
From: Long-term slow slip event detected beneath the Shima Peninsula, central Japan, from GNSS data
Detection of long-term SSEs. a Map showing locations (dots 1–60) at ~ 25 km depth on the Nankai Trough subduction interface. b Time-longitude (dot number) plot showing displacements during long-term SSEs within 100 km × 50 km rectangles centered on dots 1–60. Colored regions have correlation coefficients greater than 0.6 and 2-year displacements greater than 2 mm. See the text for details. T: Tokai long-term SSE (Ozawa et al. 2016), S: Shima Peninsula (this study), K: Kii Channel (Kobayashi 2017), WS: western Shikoku (Kobayashi 2010), B1, B2: Bungo Channel (Ozawa et al. 2007; Ozawa et al. 2013). Labels (1), (2) and (3) indicate migrations discussed in the text. The data record ends in February 2019; note that results for latest 1.5 years may change as later data are included