Earthquake · Reviewed by USGS
M4.2 earthquake 280 km WNW of Houma, Tonga
A magnitude 4.2 earthquake struck 280 km WNW of Houma, Tonga at Aug 18, 2026, 23:53 UTC, at a depth of 506 km. The epicentre was 289 km (180 mi) WNW of Nuku'alofa.
Details
| Magnitude | 4.2 mb |
|---|---|
| Time | Aug 18, 2026, 23:53 UTC |
| Depth | 505.6 km |
| Coordinates | -20.122, -177.757 |
| Felt reports | 0 |
| Tsunami flag | None |
| Source | USGS event page |
01 — Nearby
Nearest cities
02 — Around it
Other earthquakes within 100 km
| Magnitude | Location | Distance | Depth | Time |
|---|---|---|---|---|
| 4.3 | 289 km W of Houma, Tonga | 91 km / 57 mi | depth 463 km | |
| 4.1 | Fiji region | 80 km / 50 mi | depth 572 km | |
| 4.6 | 260 km WNW of Houma, Tonga | 31 km / 19 mi | depth 513 km | |
| 4.6 | 267 km WNW of Houma, Tonga | 33 km / 20 mi | depth 557 km | |
| 4.7 | Fiji region | 93 km / 58 mi | depth 595 km | |
| 4.5 | 280 km WNW of Houma, Tonga | 30 km / 19 mi | depth 513 km | |
| 4.0 | 276 km WNW of Houma, Tonga | 15 km / 10 mi | depth 534 km | |
| 4.1 | 256 km WNW of Houma, Tonga | 31 km / 19 mi | depth 423 km | |
| 4.3 | Fiji region | 98 km / 61 mi | depth 583 km | |
| 4.1 | Fiji region | 98 km / 61 mi | depth 573 km | |
| 4.6 | Fiji region | 73 km / 46 mi | depth 502 km | |
| 5.0 | Fiji region | 55 km / 34 mi | depth 536 km | |
| 4.9 | 265 km WNW of Houma, Tonga | 33 km / 20 mi | depth 519 km | |
| 4.4 | 278 km NW of Houma, Tonga | 55 km / 34 mi | depth 541 km | |
| 4.5 | 280 km WNW of Houma, Tonga | 12 km / 8 mi | depth 408 km |
USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.