Fig. 9.

(a) Comparison of SMGA1 and SMGA2 with the source regions of 1978, 1981, 2003, and 2005 events in the Miyagi-oki region. The contours show the slips of the 1978 and 1981 events estimated by Yamanaka and Kikuchi (2004) projected on the map, and the contour interval is 0.4 m. Filled stars indicate the hypocenters of the mainshocks of each sequence, and circles indicate their aftershocks by Umino et al. (2007) and JMA. (b) Comparison of SMGA1 and SMGA2 with the source regions of 1978, 1981, 2003, and 2005 events in the Miyagi-oki region. The contours show the slips of the 1936 and 1937 events estimated by Yamanaka and Kikuchi (2004) projected on the map. The contour intervals for the 1936 and 1937 events are 0.4 m and 0.3 m, respectively. (c) Comparison of SMGA3 and SMGA4 with the source regions of three M 7-class events in 1938 in the Fukushima region, and 1982 and 2008 M 7 events in the Ibaraki region. The rectangles correspond to the map projections of source fault planes obtained for three events in 1938 by Abe (1977). Filled stars indicate the hypocenters of mainshocks of each sequence, and circles indicate their aftershocks by JMA.