Possible correlation between annual gravity change and shallow background seismicity rate at subduction zone by surface load

Earth, Planets and Space

Table 2 Estimated background seismicity rate μ by QN method (with 95% confidence intervals) and by DE method

Long. (°)	Lati. (°)	μ (QN) (day⁻¹)	95% (low) (day⁻¹)	95% (up) (day⁻¹)	μ (DE) (day⁻¹)	EQ. number	Conv. rate (cm/year)
5	35	0.0095	0.0068	0.0133	0.0095	80	1
15	35	0.0029	0.0015	0.0054	0.0029	22	1
25	35	0.0282	0.0175	0.0455	0.0288	497	4
35	35	0.0166	0.0133	0.0208	0.0118	84	1
115	− 5	0.0114	0.0058	0.0224	0.0114	111	6
135	35	0.0132	0.0092	0.0189	0.0133	278	5
165	55	0.0121	0.0088	0.0167	0.0122	87	7
175	− 45	0.0126	0.0090	0.0176	0.0127	237	3
175	− 35	0.0072	0.0050	0.0103	0.0072	45	5
195 (− 165)	55	0.0030	0.0018	0.0050	0.0030	16	6
205 (− 155)	55	0.0070	0.0050	0.0099	0.0065	37	6
215 (− 145)	55	0.0004	0.0001	0.0017	0.0004	3	5
235 (− 125)	45	0.0114	0.0082	0.0157	0.0114	83	4
255 (− 105)	25	0.0098	0.0067	0.0143	0.0098	108	2
265 (− 95)	15	0.0337	0.0237	0.0479	0.0337	384	6
275 (− 85)	− 5	0.0049	0.0030	0.0079	0.0049	74	6
275 (− 85)	5	0.0212	0.0165	0.0271	0.0212	180	5
285 (− 75)	− 55	0.0019	0.0010	0.0037	0.0007	11	1
285 (− 75)	− 45	0.0056	0.0028	0.0108	0.0056	65	7
285 (− 75)	15	0.0076	0.0050	0.0116	0.0075	133	1
295 (− 65)	− 55	0.0004	0.0001	0.0017	0.0004	2	1

The longitude and latitude indicate the center point of each area. We also show earthquake numbers and approximated plate convergence rates at each area referring to Bird (2003) and McClusky et al. (2003)