Tonga earthquakes

M4.0 earthquake 282 km WNW of Haveluloto, Tonga

A magnitude 4.0 earthquake struck 282 km WNW of Haveluloto, Tonga on Mon, Aug 3, 2020, 4:27 AM GMT+13 (15:27 UTC), 542 km (337 mi) below the surface.

A larger quake followed: M4.7 Fiji region. This one was a foreshock.

Nuku‘alofa forecastMore in Tonga

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.0 (mb), light
Local time
UTC
2020-08-02 15:27:24 UTC
Depth
542.4 km (337.0 mi), deep
Epicenter
20.353° S, 177.794° W
Region
Tonga
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 16.1 km horizontally, 8.9 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
128°
Stations used
28

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 25 in the 30 days before it.

After

  1. 4.5Fiji region · 2248 days ago · 571 km deep · 80 km away
  2. 4.6Fiji region · 2245 days ago · 606 km deep · 70 km away
  3. 4.4Fiji region · 2237 days ago · 559 km deep · 35 km away
  4. 4.2Fiji region · 2235 days ago · 585 km deep · 84 km away
  5. 4.1267 km NW of Haveluloto, Tonga · 2235 days ago · 550 km deep · 91 km away
  6. 4.3267 km WNW of Haveluloto, Tonga · 2233 days ago · 502 km deep · 24 km away
  7. 4.7Fiji region · 2231 days ago · 433 km deep · 74 km away
  8. 4.1264 km WNW of Haveluloto, Tonga · 2229 days ago · 495 km deep · 32 km away
  9. 4.6288 km WNW of Haveluloto, Tonga · 2228 days ago · 558 km deep · 6 km away
  10. 4.4Fiji region · 2224 days ago · 590 km deep · 56 km away
  11. 4.2Fiji region · 2222 days ago · 567 km deep · 54 km away
  12. 4.4259 km WNW of Haveluloto, Tonga · 2218 days ago · 492 km deep · 30 km away
  13. 4.2284 km W of Haveluloto, Tonga · 2218 days ago · 499 km deep · 40 km away
  14. 4.2293 km WNW of Haveluloto, Tonga · 2217 days ago · 545 km deep · 59 km away
  15. 4.2Fiji region · 2217 days ago · 532 km deep · 63 km away
  16. 4.2Fiji region · 2214 days ago · 556 km deep · 80 km away
  17. 4.6Fiji region · 2206 days ago · 547 km deep · 69 km away
  18. 4.5258 km WNW of Haveluloto, Tonga · 2205 days ago · 513 km deep · 26 km away
  19. 4.2276 km WNW of Haveluloto, Tonga · 2200 days ago · 537 km deep · 30 km away
  20. 4.2Fiji region · 2200 days ago · 589 km deep · 92 km away
  21. 4.3Fiji region · 2196 days ago · 594 km deep · 98 km away
  22. 4.1268 km WNW of Haveluloto, Tonga · 2196 days ago · 526 km deep · 25 km away
  23. 4.1266 km W of Haveluloto, Tonga · 2191 days ago · 568 km deep · 60 km away
  24. 4.2295 km WNW of Haveluloto, Tonga · 2189 days ago · 404 km deep · 28 km away

Before

  1. 4.9Fiji region · 2250 days ago · 564 km deep · 77 km away
  2. 4.4Fiji region · 2250 days ago · 573 km deep · 48 km away
  3. 4.5Fiji region · 2252 days ago · 600 km deep · 83 km away
  4. 4.1Fiji region · 2252 days ago · 606 km deep · 70 km away
  5. 4.1Fiji region · 2252 days ago · 558 km deep · 74 km away
  6. 4.2273 km WNW of Haveluloto, Tonga · 2255 days ago · 547 km deep · 48 km away
  7. 4.4Fiji region · 2256 days ago · 557 km deep · 64 km away
  8. 4.4Fiji region · 2256 days ago · 549 km deep · 50 km away
  9. 4.4Fiji region · 2256 days ago · 548 km deep · 56 km away
  10. 5.4Fiji region · 2256 days ago · 554 km deep · 67 km away
  11. 4.1Fiji region · 2261 days ago · 557 km deep · 56 km away
  12. 4.2Fiji region · 2261 days ago · 557 km deep · 57 km away
  13. 4.2296 km WNW of Haveluloto, Tonga · 2262 days ago · 539 km deep · 23 km away
  14. 4.3Fiji region · 2264 days ago · 547 km deep · 31 km away
  15. 4.5Fiji region · 2265 days ago · 453 km deep · 65 km away
  16. 4.2249 km WNW of Haveluloto, Tonga · 2267 days ago · 496 km deep · 34 km away
  17. 4.0Fiji region · 2272 days ago · 614 km deep · 89 km away
  18. 4.1Fiji region · 2272 days ago · 495 km deep · 92 km away
  19. 4.3282 km WNW of Haveluloto, Tonga · 2273 days ago · 332 km deep · 65 km away
  20. 4.5264 km WNW of Haveluloto, Tonga · 2275 days ago · 517 km deep · 19 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000bahi. Read Mon, Sep 28, 2026, 9:30 PM UTC.