| 2021-04-10 11:38:32 | 6 | 195 km N of Madang, Papua New Guinea | 2,787 |
| 2021-04-10 09:30:44 | 6.1 | 168 km SSW of Sarangani, Philippines | 4,653 |
| 2021-04-07 18:48:00 | 5.6 | Kermadec Islands region | 2,984 |
| 2021-04-07 09:53:28 | 6 | Kermadec Islands region | 2,968 |
| 2021-04-07 05:13:15 | 5.6 | 206 km ENE of Kokopo, Papua New Guinea | 2,660 |
| 2021-04-06 08:16:15 | 5.7 | Kermadec Islands region | 2,939 |
| 2021-04-05 07:37:50 | 6 | 193 km NE of Gisborne, New Zealand | 2,727 |
| 2021-04-01 22:10:11 | 5.6 | Kermadec Islands, New Zealand | 2,886 |
| 2021-04-01 15:11:18 | 6 | Fiji region | 2,857 |
| 2021-04-01 09:56:37 | 6.5 | Kermadec Islands, New Zealand | 2,868 |
| 2021-04-01 09:56:37 | 6.6 | Kermadec Islands region | 2,991 |
| 2021-03-20 09:09:44 | 7 | 29 km ENE of Ishinomaki, Japan | 7,440 |
| 2021-03-19 18:52:43 | 5.6 | off the east coast of the North Island of New Zealand | 2,587 |
| 2021-03-16 18:38:21 | 6.6 | 171 km SSE of Ust’-Kamchatsk Staryy, Russia | 9,206 |
| 2021-03-13 21:21:58 | 6 | Kermadec Islands region | 2,980 |
| 2021-03-13 14:05:01 | 5.9 | Kermadec Islands, New Zealand | 2,849 |
| 2021-03-12 08:54:13 | 5.9 | southeast of the Loyalty Islands | 2,228 |
| 2021-03-12 00:03:19 | 5.8 | south of the Fiji Islands | 2,540 |
| 2021-03-10 20:12:37 | 5.9 | 273 km WNW of Haveluloto, Tonga | 3,092 |
| 2021-03-07 23:56:54 | 5.8 | Kermadec Islands region | 2,944 |
| 2021-03-07 07:56:19 | 5.6 | south of the Kermadec Islands | 2,838 |
| 2021-03-07 04:54:00 | 5.6 | 217 km NE of Gisborne, New Zealand | 2,712 |
| 2021-03-06 17:13:13 | 5.6 | Kermadec Islands region | 2,937 |
| 2021-03-06 13:12:05 | 6.1 | Kermadec Islands region | 2,883 |
| 2021-03-06 12:05:23 | 6.2 | Kermadec Islands region | 2,857 |
| 2021-03-06 10:34:47 | 6.2 | Kermadec Islands region | 2,867 |
| 2021-03-06 07:16:29 | 6.1 | Kermadec Islands region | 2,940 |
| 2021-03-06 07:16:19 | 5.6 | Kermadec Islands region | 2,939 |
| 2021-03-06 07:02:24 | 5.8 | Kermadec Islands region | 2,843 |
| 2021-03-06 00:16:22 | 6.3 | 183 km NE of Gisborne, New Zealand | 2,719 |
| 2021-03-05 23:17:31 | 5.6 | Kermadec Islands region | 2,949 |
| 2021-03-05 20:26:35 | 5.9 | Kermadec Islands, New Zealand | 2,928 |
| 2021-03-05 19:40:34 | 5.7 | Kermadec Islands region | 2,873 |
| 2021-03-05 19:37:08 | 5.7 | Kermadec Islands region | 2,871 |
| 2021-03-05 14:24:52 | 6.2 | Kermadec Islands region | 2,977 |
| 2021-03-05 08:13:40 | 5.9 | Kermadec Islands region | 3,029 |
| 2021-03-05 03:53:04 | 5.6 | Kermadec Islands region | 2,962 |
| 2021-03-05 03:41:31 | 5.8 | Kermadec Islands region | 2,979 |
| 2021-03-05 03:33:20 | 5.6 | Kermadec Islands region | 2,970 |
| 2021-03-05 03:21:38 | 5.6 | Kermadec Islands region | 2,979 |
| 2021-03-05 02:30:36 | 6.3 | Kermadec Islands region | 2,982 |
| 2021-03-05 00:58:27 | 5.6 | Kermadec Islands, New Zealand | 2,894 |
| 2021-03-05 00:28:19 | 5.9 | Kermadec Islands region | 2,981 |
| 2021-03-04 23:37:09 | 5.6 | Kermadec Islands, New Zealand | 2,908 |
| 2021-03-04 23:13:00 | 6.5 | Kermadec Islands region | 2,975 |
| 2021-03-04 22:55:38 | 5.6 | Kermadec Islands region | 2,984 |
| 2021-03-04 22:41:05 | 5.8 | Kermadec Islands region | 2,979 |
| 2021-03-04 22:33:45 | 5.8 | Kermadec Islands, New Zealand | 2,918 |
| 2021-03-04 21:04:06 | 5.8 | Kermadec Islands, New Zealand | 2,922 |
| 2021-03-04 21:04:00 | 5.6 | 208 km ENE of Gisborne, New Zealand | 2,768 |
| 2021-03-04 20:25:06 | 6.1 | Kermadec Islands region | 2,973 |
| 2021-03-04 19:46:16 | 5.7 | Kermadec Islands, New Zealand | 2,890 |
| 2021-03-04 19:35:52 | 5.6 | Kermadec Islands, New Zealand | 2,915 |
| 2021-03-04 19:28:33 | 8.1 | Kermadec Islands, New Zealand | 2,905 |
| 2021-03-04 17:41:23 | 7.4 | Kermadec Islands, New Zealand | 2,851 |
| 2021-03-04 16:53:11 | 6.1 | 69 km NNE of Port-Olry, Vanuatu | 2,074 |
| 2021-03-04 14:10:36 | 5.6 | southeast of the Loyalty Islands | 1,958 |
| 2021-03-04 13:27:35 | 7.3 | 238 km ENE of Gisborne, New Zealand | 2,806 |
| 2021-03-04 13:27:34 | 7.3 | 170 km NE of Gisborne, New Zealand | 2,701 |
| 2021-02-28 23:37:15 | 5.8 | 86 km W of Port-Vila, Vanuatu | 1,841 |
| 2021-02-28 20:37:37 | 5.7 | southeast of the Loyalty Islands | 2,034 |
| 2021-02-27 02:13:01 | 5.6 | 295 km E of Levuka, Fiji | 3,128 |
| 2021-02-18 15:30:47 | 6.1 | 157 km ESE of Alo, Wallis and Futuna | 3,427 |
| 2021-02-18 06:37:30 | 6.1 | 137 km S of Port-Vila, Vanuatu | 1,807 |
| 2021-02-17 22:49:38 | 6.1 | southeast of the Loyalty Islands | 1,945 |
| 2021-02-16 01:31:59 | 5.9 | 71 km W of Port-Vila, Vanuatu | 1,848 |
| 2021-02-16 00:49:25 | 6.2 | 82 km W of Port-Vila, Vanuatu | 1,837 |