Table 2. Earthquake parameters of the accelerograms used for IWTH25.

No.	Time(UTC)	M	Depth(km)	Epi. Dis.(km)	Long.	Lat.	PGA(cm/s2)
1	12/10/2000 21:30:25	4.0	79	48	141.40	39.13	4.6
2	08/24/2002 08:22:30	4.3	15	93	141.32	38.25	4.8
3	11/16/2002 12:20:06	4.2	7	40	141.13	38.71	4.1
4	05/26/2003 18:29:48	4.4	63	71	141.65	38.83	4.7
5	05/26/2003 21:33:11	4.0	74	65	141.59	38.87	4.4
6	06/09/2003 03:58:17	4.1	64	72	141.70	38.95	4.7
7	06/22/2003 12:33:55	4.4	74	65	141.58	38.82	4.7
8	10/02/2003 16:32:43	4.0	88	51	141.44	39.09	4.8
9	11/02/2003 09:36:21	4.0	74	66	141.60	38.87	4.0
10	03/26/2004 00:01:13	4.0	71	67	141.64	38.95	4.5
11	06/28/2004 11:23:57	4.1	76	66	141.61	38.88	4.9
12	10/18/2004 17:00:52	3.7	73	67	141.62	38.93	4.9
13	01/26/2006 03:00:34	3.8	68	70	141.63	38.83	4.0
14	03/24/2006 07:59:24	4.0	74	67	141.59	38.82	4.8
15	06/11/2006 05:22:30	3.1	6	26	140.57	39.05	4.6
16	09/05/2006 07:10:04	3.8	72	68	141.64	38.91	4.9
17	04/17/2008 04:20:00	5.8	166	55	140.23	39.04	4.8
18	05/29/2008 01:42:03	4.8	1	25	140.58	38.99	4.1
19	06/15/2008 04:23:32	2.7	3	23	140.79	38.81	4.1
20	06/17/2008 06:39:31	4.1	3	25	140.80	38.79	4.6
21	06/20/2008 02:32:13	3.9	10	20	140.97	39.17	4.7
22	08/13/2008 21:19:11	3.4	73	70	141.61	38.78	4.0