Fig. 10From: Distribution of low-frequency earthquakes accompanying the very low frequency earthquakes along the Ryukyu TrenchTime–space plot of low-frequency earthquake (LFE) swarm in the Yaeyama area. The swarm is plotted when the number of events was >18. The plotted area and annotations of A and B are denoted in Fig. 6a. Red circles show the LFEs. Arrows and dotted lines show the direction of LFE migration and its error range, respectively. Gray hatched areas show clusters YA-A, YA-B, and YA-CBack to article page