Skip to main content
Earth, Planets and Space
Fig. 4 | Earth, Planets and Space

Fig. 4

From: Spatiotemporal evolution of tremor activity near the Nankai Trough trench axis inferred from the spatial distribution of seismic amplitudes

Fig. 4

Temporal variation of tremor locations along and normal to the trench axis. We selected tremors at depths shallower than 14 km and rotated map view N30\(^{\circ }\) E that is parallel to the strike of the trench axis. The origin of the distances is (32.45\(^{\circ }\) N, 135.7\(^{\circ }\) E). Red and blue polygons in the map view indicate the areas of positive and negative reflection coefficients on the décollement, respectively. We visually determined the locations of these areas from Fig. 1 of Park et al. (2014). The thick black dashed line in the map view indicates the trench axis. Red dashed lines denote the origin time of teleseismic earthquakes, for which the approximate location, depth, and magnitude estimated by the GCMT project (Ekström et al. 2012) are reported. Black arrows indicate two RTR-like activities (see “Results and discussion”)

Back to article page