Earth, Planets and Space

Table 3 SMGA parameters at Steps 1 to 6 of the inversion procedure (by grid search, GS, and simplex search, SS). For location of SMGAs and hypocenters, see Fig. 6

From: Characterized source model of the M7.3 2016 Kumamoto earthquake by the 3D reciprocity GFs inversion with special reference to the velocity pulse at KMMH16

	SMGA1, KMMH14		SMGA2, KMMH16		SMGA3, KMM005
	GS	SS	GS	SS	GS	SS
Mo, Nm	5.6e18	3.26e18	5.6e18	2.08e18	11.0e18	5.51e18
Slip, m	3.46	2.02	3.46	1.29	3.52	1.77
Vr, km/s	2.40	2.52	2.40	1.80	2.90	2.69
t0, s/Vrb*, km/s	1.87/2.00	1.53/2.45	5.35/1.50	4.18/2.04	5.73/2.30	5.50/2.40
Tp, s	0.50	0.17	1.00	0.12	2.00	0.35
Tr, s**	1.50	1.43	1.50	2.00	1.72	1.86
Ap, m/s***	6.59	7.94	3.55	5.17	1.87	4.34
Rake	− 180	− 176	− 135	− 144	− 195	− 201

^*Rupture initiation time Vrb is calculated in the inversion and translated into t0. ^**Rise time Tr in this study is calculated as a half of travel time across SMGA. ^***Peak slip velocity Ap is calculated from Tp, Tr and Slip values.

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