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Geoscience Letters

Official Journal of the Asia Oceania Geosciences Society (AOGS)

Fig. 4 | Geoscience Letters

Fig. 4

From: Slow slip event in the focal area of the 1975 Kurile tsunami earthquake inferred from unusual long-term seismic quiescence

Fig. 4

The Coulomb failure stress change (ΔCFS) caused by the fault motion of slow slip event (SSE). Rectangles indicate the SSE faults of (a) model 1 and (c) model 2. Crosses depict 36 earthquakes in the seismic quiescence area 1, which have been relocated by using HYPODD. a, c are plan views. Colors represent ΔCFS at a depth of 40 km. Solid lines along the Kurile Islands indicate the trench axis (Bird 2003). 6 and 7 in (a) are the subfault number defined by Ioki and Tanioka (2016). b, d are vertical cross−sectional views along the broken line AB on the plan view. Gently curved black lines in (b) and (d) represent the upper boundary of the subducting Pacific plate (Nakanishi et al. 2004). Bold lines on the upper boudary of the subducting Pacific plate show the SSE faults assumed in this study

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