Depth variation of seismic moment and recurrence interval in Japan

Ji, Yingfeng; Yoshioka, Shoichi

doi:10.1186/s40562-020-00173-5

Geoscience Letters

Official Journal of the Asia Oceania Geosciences Society (AOGS)

Table 1 Parameters and results of the seismically dense spheres (SDS) in this study

From: Depth variation of seismic moment and recurrence interval in Japan

SDS	Lon (º)	Lat (º)	Dep (km)	Events¹	Min mag	Max mag	b-value²	k-value³	PPMCC⁴
1	139.971	37.740	8.65	52,965	− 0.6	4.6	0.99	1.52	0.798
2	135.168	34.160	6.35	36,082	− 1.3	4.5	0.85	1.77	0.829
3	133.317	35.316	9.26	27,752	− 1.2	7.3	0.71	2.12	0.816
4	140.600	36.767	6.97	25,599	− 0.4	6.1	0.90	1.66	0.662
5	140.882	39.043	7.51	23,835	− 0.6	7.2	0.98	1.53	0.684
6	137.576	35.901	7.83	23,738	− 1.1	4.7	0.99	1.51	0.841
7	139.149	34.959	5.52	23,689	− 1.4	5.9	1.06	1.42	0.749
8	141.638	38.860	67.22	20,684	− 0.4	7.1	0.95	1.58	0.821
9	139.404	36.639	7.90	18,777	− 1.1	4.8	0.99	1.52	0.821
10	139.290	34.184	13.91	14,359	0.0	6.5	0.61	2.44	0.676
11	140.911	35.744	13.46	12,501	0.0	6.1	0.89	1.68	0.709
12	138.930	37.325	9.47	11,157	− 0.7	6.8	0.97	1.55	0.900
13	135.542	34.978	9.85	11,088	− 0.8	4.4	1.00	1.50	0.838
14	136.716	37.261	7.23	10,274	− 0.6	6.9	0.96	1.56	0.896
15	140.500	39.992	6.31	9223	− 0.7	4.9	1.01	1.48	0.722
16	140.915	36.264	41.94	8310	0.0	5.2	0.89	1.68	0.831
17	134.515	35.511	7.74	8173	− 0.6	5.6	1.02	1.47	0.754
18	135.676	33.944	11.10	7622	− 0.9	4.1	1.08	1.39	0.710
19	141.137	38.435	8.58	7558	− 0.6	6.4	0.99	1.51	0.832
20	142.390	39.150	31.61	6730	0.0	6.2	0.93	1.61	0.680
21	142.992	43.423	5.69	6518	− 1.2	4.2	0.88	1.71	0.757
22	139.018	35.479	21.55	5907	− 0.8	5.4	0.97	1.54	0.852
23	140.099	35.636	65.47	5851	0.0	5.3	0.90	1.66	0.845
24	142.171	38.398	30.26	5844	0.0	5.3	0.90	1.66	0.648
25	137.668	36.514	2.05	5680	− 0.7	5.4	1.03	1.45	0.796
26	136.177	34.349	8.06	5528	− 0.9	4.1	1.03	1.45	0.761
27	138.645	36.824	5.60	5303	− 0.4	5.6	1.00	1.50	0.833
28	133.818	35.372	9.74	4956	− 1.2	5.5	1.04	1.44	0.792
29	137.889	34.874	17.92	4779	− 0.8	4.2	1.01	1.48	0.845
30	139.984	37.239	7.28	4623	− 0.5	5.7	1.01	1.48	0.699
31	137.325	35.033	37.28	4587	− 0.5	4.0	1.02	1.47	0.910
32	132.816	35.002	8.78	4184	− 1.2	4.6	0.78	1.92	0.780
33	134.697	34.925	14.07	4149	− 0.8	4.0	1.01	1.48	0.822
34	140.012	36.149	60.77	3921	− 0.1	5.4	0.93	1.61	0.881
35	142.159	39.677	41.90	3810	− 0.4	5.9	0.94	1.59	0.746
36	141.267	36.767	41.78	3661	0.0	5.8	0.79	1.89	0.835
37	140.633	38.285	12.38	3522	− 0.1	3.7	1.00	1.50	0.733
38	144.695	43.697	6.03	3442	− 0.4	4.8	0.96	1.56	0.792
39	139.308	41.958	9.49	3402	− 0.2	4.2	0.95	1.58	0.803
40	141.790	37.357	36.93	3242	0.0	6.2	0.84	1.78	0.797
41	135.930	35.479	11.57	2957	− 1.1	4.5	1.01	1.48	0.817
42	138.465	34.832	20.46	2837	− 0.3	6.5	0.97	1.55	0.768
43	142.660	39.661	29.65	2751	0.0	6.4	0.82	1.84	0.755
44	132.689	33.481	34.60	2598	− 0.6	3.7	0.89	1.68	0.718
45	141.694	44.104	5.80	2430	− 0.4	6.1	1.00	1.50	0.815
46	136.819	35.444	12.51	2371	− 0.7	3.5	0.99	1.51	0.831
47	138.089	35.884	8.83	2185	− 1.0	3.6	0.94	1.59	0.803
48	134.534	33.855	9.78	2144	− 0.8	4.5	0.91	1.64	0.792
49	144.004	43.363	16.85	2052	− 0.8	4.1	1.06	1.41	0.812

¹The numbers of the seismic events from October 1, 1997 to February 28, 2015, in a full-magnitude range occurring within each SDS according to the catalog of the JMA. The full-range magnitude of events is adopted for each SDS
²The completeness magnitude Mc is largely influenced by the station density, and the use of the earthquakes with magnitudes of 1.9 or larger above possibly covers a complete catalog (Nanjo et al. 2010). The b-value estimation in Table 1 includes M < Mc events and has an uncertainty due to the event detectability
³The parameters of Eq. 1 in the main text. The variable k is a dimensionless value. The unit of c is (Nms⁻¹)
⁴The Pearson product–moment correlation coefficient (PPMCC) of the logarithm of the seismic moment and seismic interval for each SDS

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