Skip to main content
Earth, Planets and Space
Fig. 1 | Earth, Planets and Space

Fig. 1

From: Fault extent of the largest aftershock of the 1968 Tokachi-Oki, Japan, earthquake and an interpretation of the normal faulting focal mechanism

Fig. 1

Epicenters (solid stars) and focal mechanism solutions of the 1968 Tokachi-Oki earthquake, its largest aftershock, and the 2003 Tokachi-Oki earthquake. The solid triangles indicate strong motion observation stations. The sold circles show epicenters of aftershocks within 24 hours after the 1968 Tokachi-Oki earthquake. The open circle with ‘N’ indicates the epicenter of I-phase determined by Nagamune (1971), and those with ‘M1’ and ‘M2’ are the locations of subevents by Mori and Shimazaki (1984). The thick broken line marked with A and A′ is approximately parallel to the direction of motion of the Pacific plate. The shaded ellipse indicated by a broken line indicates the fault plane of the largest aftershock derived in the present study.

Back to article page