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Fig. 1. | Earth, Planets and Space

Fig. 1.

From: Correlation between Coulomb stress changes imparted by large historical strike-slip earthquakes and current seismicity in Japan

Fig. 1.

(a) Epicentral distribution from the unified JMA catalog (October 1997 to May 2010, M ≥ 1.5, hypocentral depth ≤ 30 km). The white stars denote the epicenters of eight large historical earthquakes with strike-slip fault mechanisms (1. the 1927 Tango earthquake (M 7.3), 2. the 1931 Nishi-Saitama earthquake (M 6.9), 3. the 1943 Tottori earthquake (M 7.2), 4. the 1948 Fukui earthquake (M 7.1), 5. the 1963 Wakasa Bay earthquake (M 6.9), 6. the 1969 Gifu-Ken Chubu earthquake (M 6.6), 7. the 1984 Nagano-Ken Seibu earthquake (M 6.8), 8. the 2000 Tottori-Ken Seibu earthquake (M 7.3)). In the inset, PHS denotes the Philippine Sea Plate, and PAC denotes the Pacific Plate. The rectangles indicate the regions of subsequent figures (Figs. 2, 3, 4, and 5). (b) Distributions of the F-net focal mechanism solutions from October 1997 to May 2010 determined by NIED.

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