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

Fig. 1

From: Statistical study on the regional characteristics of seismic activity in and around Japan: frequency-magnitude distribution and tidal correlation

Fig. 1

The epicentral distribution and centers of the rectangular areas used in the analyses. Red dots show epicenters and blue crosses show the center of each grid for \(l=0.2^\circ\) (\(0.1^\circ\) intervals in accordance with CSEP-Japan). For \(l=0.4^\circ\), the center of the rectangular area (\(0.2^\circ\) intervals) was the point where both the latitude and longitude were halved. a Land areas (area A); b the entire area in and around Japan (area B)

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