Earthquake parameters in region Tonga Islands, date 2025-03-30 19:30:25, lat -20.30, lon -173.71, depth 10 km, mb: 4.9/5 detemined with station data:
| N | Code | Time | Phase | Delta |
Azimuth | Residual | Ms | mb |
Network |
| 1 | MSVF |
19:32:24.6 | P | 8.20 | 287 | -0.0 |
- | - | SVA |
| 2 | STKA |
19:38:11.6 | P | 41.50 | 245 | -1.1 |
- | - | AUST |
| 3 | YSS |
19:42:22.5 | P | 77.59 | 331 | 0.5 |
- | 5.4 | SAGSR |
| 4 | ANMO |
19:42:57.0 | P | 84.17 | 50 | -0.1 |
- | 4.0 | ALQ |
| 5 | MA2 |
19:42:59.2 | P | 84.73 | 343 | -0.7 |
- | 4.8 | NEGSR |
| 6 | SEY |
19:43:11.8 | P | 87.15 | 345 | -0.0 |
- | 5.1 | NEGSR |
| 7 | COLA |
19:43:12.6 | P | 87.20 | 11 | 0.5 |
- | 5.1 | NEIC |
| 8 | TUP |
19:43:40.7 | P | 93.43 | 328 | -0.4 |
- | - | BAGSR |
| 9 | YAK |
19:43:39.9 | P | 93.48 | 337 | -1.4 |
- | - | YAGSR |
| 10 | CM31 |
19:43:44.0 | P | 93.86 | 288 | 0.9 |
- | - | BKK |
| 11 | CMAR |
19:43:44.7 | P | 93.86 | 288 | 1.6 |
- | - | BKK |
| 12 | TIXI |
19:44:09.4 | P | 99.62 | 344 | 0.4 |
- | - | YAGSR |
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