Skip to main content
Fig. 5 | Progress in Earth and Planetary Science

Fig. 5

From: A review on slow earthquakes in the Japan Trench

Fig. 5

Tectonic tremor activity in the Japan Trench from August 2016 to December 2021. a Epicenters of the tectonic tremors. Colored points indicate the epicenters of the tremors. Yellow and red stars represent VLFEs (Baba et al. 2020) and Mj ≥ 4 fast earthquakes, respectively. The fast earthquakes are from the Japan Meteorological Agency (JMA) catalog. Open and solid dashed green rectangles denote deep and shallow short-term SSEs, respectively (Nishimura 2021). The upper edges of the SSE fault models are indicated by the green solid lines. Black triangles represent S-net stations. The orange shaded polygons are subregions used for tremor detection by Nishikawa et al. (2019). The upper surface of the subducting Pacific Plate is indicated by the black contours at 10-km-depth intervals. b Spatiotemporal distribution of the tectonic tremors. We used Japanese Standard Time (UTC + 9 h). c–h Enlarged views of (b). The spatiotemporal windows of c–h are shown in (b)

Back to article page