Table 2. Source Parameters of Studied Earthquakes.
No	Origin Time1	Lat.1	Long. 1	Dep.	Mxx2	Myy2	Mzz2	Mxy2	Mxz2	Myz2	Mw2	Strike3	Dip3	Rake3	E4	ε4	Class	
1	97/01/02/06:31:42.4	22.42	121.09	27	-0.03 	-2.15 	1.90 	1.15 	0.40 	-2.66 	4.30	221	22	118	0.543	23.61	C2	
2	97/01/05/10:34:16.9	24.62	122.53	27	55.50 	-37.68 	-14.57 	38.03 	30.55 	-35.71 	5.20	149	56	-17	0.535	24.98	C2	
3	97/01/05/18:40:53.6	23.03	122.86	36	5.17 	-6.56 	0.75 	4.48 	-4.99 	1.39 	4.57	336	56	8	0.533	8.77	C1	
4	97/01/06/01:51:12.2	24.65	122.34	15	3.22 	-1.04 	-1.53 	1.53 	0.27 	-1.52 	4.29	252	58	-146	0.599	12.83	C2	
5	97/01/16/01:07:20.4	22.01	121.30	27	-0.52 	-7.70 	5.07 	27.05 	-15.09 	10.98 	4.95	353	61	-4	0.433	65.54	B4	
6	97/01/16/09:45:44.4	21.56	121.38	24	-0.78 	-0.04 	0.98 	-0.73 	0.21 	1.78 	4.15	276	27	29	0.353	33.24	B3	
7	97/01/18/17:13:47.8	23.93	122.44	18	-8.93 	3.37 	12.66 	-1.10 	23.58 	-9.23 	4.90	295	15	133	0.613	7.12	C1	
8	97/01/20/05:53:00.4	24.07	121.85	36	-0.37 	-0.86 	1.24 	0.69 	-0.24 	0.76 	4.06	46	31	108	0.287	9.82	A1	
9	97/01/26/19:18:00.3	24.09	121.63	39	-0.40 	0.70 	0.09 	1.31 	0.39 	-1.57 	4.16	282	41	-179	0.418	6.25	B1	
10	97/02/09/21:42:21.9	23.51	121.70	36	-0.05 	-1.75 	1.40 	0.44 	-0.33 	-0.09 	4.09	207	47	109	0.351	12.44	B2	
11	97/02/10/16:50:08.7	24.13	121.76	27	-0.55 	0.39 	0.23 	1.32 	0.64 	-2.79 	4.27	278	26	175	0.472	4.95	B1	
12	97/02/13/08:29:54.2	23.21	121.46	18	0.10 	-1.63 	1.07 	0.47 	-0.75 	-0.02 	4.08	348	49	49	0.401	5.47	B1	
13	97/02/19/09:49:21.2	23.90	121.56	21	-1.35 	-0.21 	1.07 	1.18 	0.27 	0.79 	4.12	88	52	138	0.416	11.36	B2	
14	97/02/27/15:44:43.3	23.89	121.71	24	0.15 	-1.40 	1.98 	0.88 	-0.54 	-2.04 	4.24	227	29	136	0.371	14.28	B2	
15	97/03/10/07:33:37.2	24.08	122.34	27	-11.88 	6.16 	7.29 	-1.39 	7.70 	-5.81 	4.71	309	39	151	0.441	17.49	B2	
16	97/03/10/14:41:56.1	23.95	122.24	27	-5.10 	2.24 	5.35 	-1.67 	4.73 	-2.41 	4.53	310	33	140	0.516	4.17	C1	
17	97/03/24/10:26:03.3	22.73	121.38	24	0.91 	-1.31 	0.18 	0.50 	-0.93 	1.03 	4.12	326	40	7	0.448	39.26	B3	
18	97/03/24/23:32:20.1	24.16	121.72	42	4.57 	-3.85 	0.62 	-2.44 	4.73 	-5.46 	4.56	124	34	1	0.419	27.70	B3	
19	97/04/13/17:45:14.0	23.81	121.71	48	26.00 	-9.71 	-13.69 	-0.46 	14.85 	-24.69 	4.98	119	35	-25	0.578	35.61	C3	
20	97/04/15/21:33:22.6	23.99	122.30	27	-6.39 	3.44 	2.64 	-2.49 	3.96 	-3.58 	4.54	321	46	160	0.565	6.73	C1	
21	97/04/27/23:59:32.6	24.61	121.96	60	-1.56 	-0.32 	1.83 	4.15 	0.90 	3.09 	4.43	87	54	159	0.541	8.20	C1	
22	97/05/02/21:30:23.6	24.19	120.18	27	1.30 	-1.19 	0.23 	-0.51 	-0.61 	0.11 	4.05	212	74	163	0.518	19.16	C2	
23	97/05/03/02:46:13.7	22.54	121.40	27	18.60 	-43.94 	20.77 	2.79 	-19.45 	4.82 	5.02	328	54	33	0.423	10.97	B2	
24	97/05/15/10:43:47.7	24.79	121.93	108	-1.06 	-0.03 	0.31 	-1.13 	1.53 	2.34 	4.27	261	20	23	0.435	32.60	B3	
25	97/05/23/10:41:20.1	21.21	122.04	180	-1.62 	5.73 	-4.15 	-2.99 	3.46 	4.11 	4.54	231	43	-31	0.394	19.37	B2	
26	97/05/24/06:23:18.4	23.91	122.41	27	-0.77 	0.50 	0.12 	-0.43 	1.75 	-0.92 	4.15	328	21	174	0.610	4.15	C1	
27	97/05/31/23:21:37.4	24.62	121.87	60	-0.09 	0.45 	-0.01 	0.20 	1.82 	0.76 	4.14	197	10	-7	0.437	10.10	B2	
28	97/06/14/19:25:20.2	23.89	121.70	21	0.22 	-1.29 	1.95 	0.69 	1.07 	-1.78 	4.23	192	21	74	0.507	11.32	C2	
29	97/06/18/02:03:30.6	23.96	121.83	39	5.58 	-14.99 	6.98 	5.70 	3.66 	8.74 	4.75	51	43	152	0.379	37.89	B3	
30	97/06/22/09:36:04.1	22.17	121.38	21	8.38 	-26.46 	20.19 	8.91 	-8.23 	-0.82 	4.89	347	51	50	0.539	35.15	C3	
31	97/06/27/15:53:27.5	21.84	121.58	36	-4.55 	1.84 	5.02 	0.68 	-4.36 	5.13 	4.55	109	27	144	0.551	20.94	C2	
32	97/07/04/18:37:30.5	23.06	120.79	12	1.07 	3.02 	-9.56 	10.00 	-13.02 	-12.76 	4.83	327	16	-77	0.562	50.38	C4	
33	97/07/08/16:26:27.3	23.92	122.43	21	-8.65 	4.48 	0.91 	-3.33 	6.46 	-3.14 	4.62	327	44	170	0.633	21.88	C2	
34	97/07/10/08:19:53.6	21.79	121.62	15	3.77 	5.42 	-5.62 	-0.17 	-10.09 	16.98 	4.81	196	8	-103	0.526	26.08	C3	
35	97/07/15/11:05:33.4	24.62	122.52	75	11.00 	-21.97 	9.19 	15.14 	3.43 	161.80 	5.41	63	6	155	0.426	12.95	B2	
36	97/08/05/08:41:13.5	23.02	121.48	21	0.10 	-1.41 	1.23 	0.69 	-1.06 	0.66 	4.13	356	33	46	0.476	8.34	B1	
37	97/08/24/12:17:40.0	21.64	120.20	54	-44.43 	-19.24 	67.30 	27.05 	-4.78 	-11.32 	5.15	247	45	104	0.524	15.44	C2	
38	97/09/08/16:17:07.5	24.08	121.69	27	-0.19 	-0.32 	0.91 	1.00 	0.08 	-1.33 	4.11	257	34	152	0.446	10.56	B2	
39	97/10/11/18:24:25.7	24.98	122.58	129	-72.82 	139.95 	-66.20 	41.04 	-58.62 	68.56 	5.40	132	48	-156	0.427	16.47	B2	
40	97/10/17/13:14:16.8	22.82	121.43	24	1.97 	0.49 	-1.80 	1.98 	-2.04 	-0.32 	4.29	332	33	-46	0.434	39.11	B3	
41	97/10/22/11:16:26.6	22.44	121.46	33	4.93 	-13.18 	5.56 	5.30 	-6.73 	0.63 	4.69	339	55	29	0.376	10.19	B2	
42	97/10/25/02:40:15.9	24.29	122.11	36	-3.86 	3.21 	0.41 	-0.55 	0.83 	-0.65 	4.32	319	73	177	0.685	23.04	C2	
43	97/11/12/00:09:35.8	21.75	121.40	69	-6.17 	-6.81 	12.57 	10.76 	9.18 	-15.80 	4.86	242	22	119	0.408	28.32	B3	
44	97/11/12/22:36:45.2	24.14	121.77	30	-3.37 	1.87 	1.03 	2.98 	1.95 	0.52 	4.38	202	60	9	0.557	38.31	C3	
45	97/11/14/04:29:50.8	24.16	121.76	24	-5.29 	-29.04 	16.68 	18.08 	21.59 	-40.78 	5.10	209	16	91	0.499	35.08	B3	
46	97/12/23/02:35:45.7	23.98	122.33	30	-2.27 	1.44 	1.33 	-1.55 	3.28 	-2.21 	4.39	325	33	165	0.643	25.91	C3	
1 Origin time (Year/Month/Day/hr:min:sec) and epicentral locations (oN, oE) are reported by the Seismology Center, Central Weather Bureau, Taiwan. 
2 X, Y, Z point to north, east, and vertically down, respectively. All are in the unit of 1x1015 Nt m.
3 Estimated best double-couple solutions in degrees.
4 E and  are defined by equations (2) and (1), respectively.   is expressed in percent (%).