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Earth, Planets and Space
Fig. 1. | Earth, Planets and Space

Fig. 1.

From: A long-term seismic quiescence started 23 years before the 2011 off the Pacific coast of Tohoku Earthquake (M = 9.0)

Fig. 1.

(a) Epicentral distribution of earthquakes used for calculating Z-values in this study along the Kurile and the Japan trenches (1 January 1965–31 December 2010, M ≥ 4.5, 0 ≤ Depth (km) ≤ 60). This is the JMA earthquake catalog including clustered events such as aftershocks and earthquake swarms. (b) Space-time plot of earthquakes shown in (a).

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