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Earth, Planets and Space
Fig. 9 | Earth, Planets and Space

Fig. 9

From: Why do aftershocks occur? Relationship between mainshock rupture and aftershock sequence based on highly resolved hypocenter and focal mechanism distributions

Fig. 9

Relationship between L and A t. The straight line indicates the scaling between P and L based on a natural fault zone in the outcrop compiled by Vermilye and Scholz (1998). The solid red and gray circles indicate A t around the mainshock fault (Faults 1 through 4) and the best-fit planes in the northern part of the aftershock region (Faults 5 through 8), respectively. The red open circles indicate A t obtained using a smaller region for event selection around Faults 1 and 2. The green broken line indicates the upper limit of the location errors of hypocenters in the horizontal direction. The red star indicates the thickness of the hypocenter distribution and its fault length associated with the swarm activity in the volcanic area (Yukutake et al. 2011)

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