Tonga earthquakes

M4.1 earthquake 166 km WNW of Haveluloto, Tonga

A magnitude 4.1 earthquake struck 166 km WNW of Haveluloto, Tonga on Thu, Apr 28, 2016, 9:11 AM GMT+13 (20:11 UTC), 296 km (184 mi) below the surface.

A larger quake followed: M4.9 264 km WNW of Haveluloto, Tonga. 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
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-04-27 20:11:58 UTC
Depth
296.1 km (184.0 mi), intermediate-depth
Epicenter
20.729° S, 176.754° 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.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 15.1 km horizontally, 8.9 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
139°
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.1232 km WNW of Haveluloto, Tonga · 3792 days ago · 305 km deep · 66 km away
  2. 4.1259 km WNW of Haveluloto, Tonga · 3778 days ago · 509 km deep · 95 km away
  3. 4.4245 km W of Haveluloto, Tonga · 3775 days ago · 456 km deep · 82 km away
  4. 4.9264 km WNW of Haveluloto, Tonga · 3769 days ago · 520 km deep · 98 km away
  5. 4.3256 km WNW of Haveluloto, Tonga · 3763 days ago · 516 km deep · 90 km away
  6. 4.2241 km WNW of Haveluloto, Tonga · 3756 days ago · 459 km deep · 78 km away

Before

  1. 4.0246 km WNW of Haveluloto, Tonga · 3820 days ago · 524 km deep · 85 km away
  2. 4.2225 km WNW of Haveluloto, Tonga · 3821 days ago · 319 km deep · 58 km away
  3. 4.3246 km W of Haveluloto, Tonga · 3824 days ago · 482 km deep · 86 km away
  4. 4.3263 km WNW of Haveluloto, Tonga · 3828 days ago · 527 km deep · 97 km away
  5. 4.2253 km WNW of Haveluloto, Tonga · 3828 days ago · 467 km deep · 87 km away
  6. 4.4180 km WNW of Haveluloto, Tonga · 3833 days ago · 297 km deep · 23 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10005e2t. Read Fri, Oct 2, 2026, 8:06 AM UTC.