Earthquake · Reviewed by USGS
M4.1 earthquake 178 km W of Neiafu, Tonga
A magnitude 4.1 earthquake struck 178 km W of Neiafu, Tonga at Aug 21, 2026, 15:21 UTC, at a depth of 271 km.
Details
| Magnitude | 4.1 mb |
|---|---|
| Time | Aug 21, 2026, 15:21 UTC |
| Depth | 271.1 km |
| Coordinates | -18.460, -175.658 |
| Felt reports | 0 |
| Tsunami flag | None |
| Source | USGS event page |
01 — Around it
Other earthquakes within 100 km
| Magnitude | Location | Distance | Depth | Time |
|---|---|---|---|---|
| 4.5 | 159 km W of Neiafu, Tonga | 19 km / 12 mi | depth 257 km | |
| 5.5 | 122 km W of Neiafu, Tonga | 61 km / 38 mi | depth 195 km | |
| 4.5 | 121 km NW of Fangale’ounga, Tonga | 80 km / 50 mi | depth 114 km | |
| 4.0 | 189 km W of Neiafu, Tonga | 15 km / 9 mi | depth 284 km | |
| 4.6 | 160 km W of Neiafu, Tonga | 32 km / 20 mi | depth 208 km | |
| 4.0 | 147 km W of Neiafu, Tonga | 31 km / 19 mi | depth 228 km | |
| 4.1 | 160 km W of Neiafu, Tonga | 19 km / 12 mi | depth 272 km |
USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.