| M 7.0 | 133 km ESE of Ishinomaki, Japan | 10.0 km | 2003-10-31 01:06:28 UTC | View event → |
| M 6.7 | 39 km SSE of Kushiro, Japan | 32.0 km | 2003-10-08 09:06:55 UTC | View event → |
| M 6.7 | 9 km S of Aktash, Russia | 10.0 km | 2003-10-01 01:03:25 UTC | View event → |
| M 6.4 | 147 km WSW of Ternate, Indonesia | 33.0 km | 2003-10-18 22:27:13 UTC | View event → |
| M 6.4 | 174 km WNW of Panguna, Papua New Guinea | 133.0 km | 2003-10-17 10:19:06 UTC | View event → |
| M 6.3 | 56 km NNW of Finschhafen, Papua New Guinea | 53.5 km | 2003-10-22 11:45:30 UTC | View event → |
| M 6.2 | 18 km WSW of Tagbak, Philippines | 33.0 km | 2003-10-09 22:19:13 UTC | View event → |
| M 6.2 | 246 km SSE of Vaitogi, American Samoa | 10.0 km | 2003-10-07 04:55:28 UTC | View event → |
| M 6.0 | 141 km SW of Kokopo, Papua New Guinea | 65.0 km | 2003-10-28 02:33:51 UTC | View event → |
| M 6.0 | 211 km E of Levuka, Fiji | 582.6 km | 2003-10-15 02:19:43 UTC | View event → |
| M 6.0 | 183 km S of Alo, Wallis and Futuna | 10.0 km | 2003-10-13 09:52:26 UTC | View event → |
| M 5.9 | South Sandwich Islands region | 10.0 km | 2003-10-30 06:00:45 UTC | View event → |
| M 5.9 | 82 km E of Shikotan, Russia | 65.4 km | 2003-10-28 21:48:21 UTC | View event → |
| M 5.9 | 161 km ENE of Angoram, Papua New Guinea | 33.0 km | 2003-10-24 01:26:57 UTC | View event → |
| M 5.9 | 87 km SSE of Kushiro, Japan | 33.0 km | 2003-10-08 13:32:09 UTC | View event → |
| M 5.9 | 167 km NNW of Metinaro, Timor Leste | 532.7 km | 2003-10-04 14:49:02 UTC | View event → |
| M 5.8 | 76 km SE of Zhangye, China | 10.0 km | 2003-10-25 12:47:58 UTC | View event → |
| M 5.8 | 73 km SE of Zhangye, China | 10.0 km | 2003-10-25 12:41:35 UTC | View event → |
| M 5.8 | south of the Fiji Islands | 503.8 km | 2003-10-23 07:58:24 UTC | View event → |
| M 5.8 | northern East Pacific Rise | 10.0 km | 2003-10-22 02:30:37 UTC | View event → |
| M 5.8 | 142 km S of Bengkulu, Indonesia | 35.1 km | 2003-10-17 17:19:53 UTC | View event → |
| M 5.8 | 116 km S of Kushiro, Japan | 33.0 km | 2003-10-11 00:08:49 UTC | View event → |
| M 5.8 | 88 km SSE of Kushiro, Japan | 33.0 km | 2003-10-08 23:15:17 UTC | View event → |
| M 5.8 | 151 km W of Lata, Solomon Islands | 33.0 km | 2003-10-06 18:29:38 UTC | View event → |
| M 5.7 | 123 km SSE of Kavieng, Papua New Guinea | 33.0 km | 2003-10-30 06:44:07 UTC | View event → |
| M 5.7 | 224 km E of Levuka, Fiji | 597.4 km | 2003-10-11 19:46:07 UTC | View event → |
| M 5.7 | 120 km E of Shikotan, Russia | 51.2 km | 2003-10-11 01:11:31 UTC | View event → |
| M 5.6 | 21 km NNE of Nuñoa, Peru | 196.8 km | 2003-10-28 08:14:25 UTC | View event → |
| M 5.6 | 288 km SE of Attu Station, Alaska | 33.0 km | 2003-10-23 10:54:39 UTC | View event → |
| M 5.6 | 224 km NNE of Fais, Micronesia | 10.0 km | 2003-10-23 07:53:52 UTC | View event → |
| M 5.6 | South Sandwich Islands region | 156.8 km | 2003-10-20 16:50:18 UTC | View event → |
| M 5.6 | Yunnan, China | 33.0 km | 2003-10-16 12:28:09 UTC | View event → |
| M 5.6 | 127 km ESE of Shizunai-furukawach?, Japan | 33.0 km | 2003-10-11 18:26:18 UTC | View event → |
| M 5.6 | 134 km SE of Shizunai-furukawach?, Japan | 33.0 km | 2003-10-09 06:52:57 UTC | View event → |
| M 5.5 | western Indian-Antarctic Ridge | 10.0 km | 2003-10-29 21:10:21 UTC | View event → |
| M 5.5 | 85 km SSE of Kushiro, Japan | 33.0 km | 2003-10-06 19:26:15 UTC | View event → |
| M 5.4 | South Sandwich Islands region | 33.0 km | 2003-10-29 19:54:19 UTC | View event → |
| M 5.4 | 182 km SW of Kavieng, Papua New Guinea | 74.5 km | 2003-10-23 22:47:25 UTC | View event → |
| M 5.4 | South Sandwich Islands region | 33.0 km | 2003-10-23 07:47:23 UTC | View event → |
| M 5.4 | Kermadec Islands, New Zealand | 33.0 km | 2003-10-15 06:35:46 UTC | View event → |
| M 5.4 | north of Ascension Island | 10.0 km | 2003-10-11 23:08:45 UTC | View event → |
| M 5.4 | Reykjanes Ridge | 10.0 km | 2003-10-09 22:13:12 UTC | View event → |
| M 5.4 | southern Mid-Atlantic Ridge | 10.0 km | 2003-10-07 16:54:16 UTC | View event → |
| M 5.4 | 107 km S of Kushiro, Japan | 33.0 km | 2003-10-01 16:23:29 UTC | View event → |
| M 5.3 | 282 km ESE of Tadine, New Caledonia | 33.0 km | 2003-10-30 16:26:04 UTC | View event → |
| M 5.3 | 30 km SE of Taungdwingyi, Myanmar | 10.0 km | 2003-10-30 15:22:18 UTC | View event → |
| M 5.3 | 10 km NE of Palca, Peru | 107.9 km | 2003-10-26 16:27:08 UTC | View event → |
| M 5.3 | 49 km SW of Kirakira, Solomon Islands | 33.7 km | 2003-10-23 08:12:39 UTC | View event → |
| M 5.3 | 25 km E of Sonsorol Village, Palau | 33.0 km | 2003-10-22 02:05:10 UTC | View event → |
| M 5.3 | 11 km NW of Abepura, Indonesia | 10.0 km | 2003-10-21 21:31:01 UTC | View event → |
| M 5.3 | 113 km SE of Hihifo, Tonga | 33.0 km | 2003-10-20 22:39:33 UTC | View event → |
| M 5.3 | 116 km W of Abepura, Indonesia | 10.0 km | 2003-10-20 16:14:46 UTC | View event → |
| M 5.3 | 78 km WSW of Kýthira, Greece | 33.9 km | 2003-10-17 12:57:07 UTC | View event → |
| M 5.3 | 151 km S of Kushiro, Japan | 33.0 km | 2003-10-14 12:39:22 UTC | View event → |
| M 5.3 | 167 km W of Neiafu, Tonga | 236.7 km | 2003-10-12 08:47:49 UTC | View event → |
| M 5.3 | 124 km S of Kushiro, Japan | 33.0 km | 2003-10-11 00:36:00 UTC | View event → |
| M 5.3 | 13 km WNW of San Pedro, Philippines | 33.0 km | 2003-10-10 03:32:45 UTC | View event → |
| M 5.3 | 149 km WNW of Tobelo, Indonesia | 33.0 km | 2003-10-05 13:53:20 UTC | View event → |
| M 5.3 | 62 km WSW of Vallenar, Chile | 29.2 km | 2003-10-04 18:15:55 UTC | View event → |
| M 5.3 | Kermadec Islands, New Zealand | 33.0 km | 2003-10-03 00:53:14 UTC | View event → |