| 2021-06-23 05:39:39 | 5.7 | southeast of the Loyalty Islands | 1,947 |
| 2021-06-21 11:14:12 | 5.9 | Kermadec Islands, New Zealand | 2,883 |
| 2021-06-20 17:05:48 | 6.5 | Kermadec Islands, New Zealand | 2,852 |
| 2021-06-19 11:59:05 | 5.8 | Fiji region | 2,412 |
| 2021-06-08 10:56:38 | 5.7 | 134 km ENE of Kimbe, Papua New Guinea | 2,492 |
| 2021-06-06 23:16:39 | 5.8 | Kermadec Islands region | 3,019 |
| 2021-06-06 18:24:28 | 5.6 | 192 km SSE of Alo, Wallis and Futuna | 3,315 |
| 2021-06-03 10:09:55 | 6.1 | 128 km WSW of Ternate, Indonesia | 4,209 |
| 2021-05-25 21:36:44 | 5.7 | 147 km NW of Neiafu, Tonga | 3,475 |
| 2021-05-21 22:13:18 | 6.5 | | 3,276 |
| 2021-05-21 18:04:13 | 7.3 | Southern Qinghai, China | 9,000 |
| 2021-05-21 13:48:37 | 6.1 | 26 km NW of Dali, China | 8,207 |
| 2021-05-19 00:42:19 | 6.7 | southern East Pacific Rise | 9,034 |
| 2021-05-14 06:33:07 | 6.7 | 260 km S of Sinabang, Indonesia | 6,752 |
| 2021-05-13 13:31:35 | 5.7 | 187 km SSE of Alo, Wallis and Futuna | 3,302 |
| 2021-05-12 14:05:15 | 6.7 | Mauritius - Reunion region | 8,822 |
| 2021-05-11 09:21:10 | 5.7 | 235 km SSE of Alo, Wallis and Futuna | 3,272 |
| 2021-05-07 23:35:14 | 6.1 | Fiji region | 3,156 |
| 2021-05-07 15:21:13 | 6.1 | west of Macquarie Island | 3,081 |
| 2021-05-01 01:27:27 | 6.8 | 35 km SE of Ishinomaki, Japan | 7,410 |
| 2021-04-29 06:50:26 | 6.1 | Kermadec Islands region | 3,000 |
| 2021-04-29 03:58:48 | 5.7 | 172 km NE of Gisborne, New Zealand | 2,709 |
| 2021-04-27 16:33:34 | 5.9 | Kermadec Islands region | 2,951 |
| 2021-04-27 08:05:31 | 6.1 | 176 km ENE of Angoram, Papua New Guinea | 2,798 |
| 2021-04-27 02:12:50 | 5.6 | 179 km ENE of Angoram, Papua New Guinea | 2,800 |
| 2021-04-26 21:07:27 | 5.6 | Kermadec Islands region | 2,972 |
| 2021-04-25 22:28:02 | 6.4 | 203 km WSW of Haveluloto, Tonga | 3,086 |