Tonga earthquakes

M4.5 earthquake 143 km NNE of Neiafu, Tonga

A magnitude 4.5 earthquake struck 143 km NNE of Neiafu, Tonga on Sat, Apr 2, 2016, 7:50 AM GMT-12 (19:50 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.7 133 km NE of Neiafu, Tonga. This one was a foreshock.

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

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The earthquake

Magnitude
4.5 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-04-02 19:50:03 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
17.406° S, 173.601° 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 10.3 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.19
Depth from
Operator assigned
Station coverage gap
64°
Stations used
17

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 4.8151 km NE of Neiafu, Tonga · 3835 days ago · 35 km deep · 78 km away
  2. 4.3127 km SSW of Hihifo, Tonga · 3833 days ago · 133 km deep · 72 km away
  3. 4.5149 km NNW of Neiafu, Tonga · 3831 days ago · 132 km deep · 90 km away
  4. 4.5149 km SSW of Hihifo, Tonga · 3821 days ago · 61 km deep · 84 km away
  5. 4.6135 km SSW of Hihifo, Tonga · 3821 days ago · 69 km deep · 75 km away
  6. 4.6162 km NE of Neiafu, Tonga · 3820 days ago · 10 km deep · 81 km away
  7. 4.5117 km SSW of Hihifo, Tonga · 3819 days ago · 64 km deep · 64 km away
  8. 5.7133 km NE of Neiafu, Tonga · 3815 days ago · 27 km deep · 53 km away
  9. 4.693 km SSE of Hihifo, Tonga · 3814 days ago · 10 km deep · 81 km away
  10. 4.6148 km NE of Neiafu, Tonga · 3813 days ago · 10 km deep · 67 km away
  11. 4.6143 km NNW of Neiafu, Tonga · 3813 days ago · 103 km deep · 70 km away
  12. 4.4137 km SSW of Hihifo, Tonga · 3808 days ago · 92 km deep · 68 km away · felt by 1
  13. 4.6133 km N of Neiafu, Tonga · 3806 days ago · 61 km deep · 49 km away
  14. 4.3140 km SSW of Hihifo, Tonga · 3802 days ago · 191 km deep · 85 km away
  15. 4.7117 km NNE of Neiafu, Tonga · 3802 days ago · 60 km deep · 28 km away
  16. 4.282 km SSW of Hihifo, Tonga · 3794 days ago · 128 km deep · 99 km away
  17. 4.2111 km SSW of Hihifo, Tonga · 3789 days ago · 222 km deep · 77 km away
  18. 4.4124 km SSE of Hihifo, Tonga · 3783 days ago · 45 km deep · 72 km away

Before

  1. 4.551 km NNE of Neiafu, Tonga · 3841 days ago · 10 km deep · 93 km away
  2. 4.851 km N of Neiafu, Tonga · 3842 days ago · 35 km deep · 93 km away
  3. 4.5124 km NE of Neiafu, Tonga · 3846 days ago · 68 km deep · 81 km away
  4. 4.6151 km NE of Neiafu, Tonga · 3846 days ago · 10 km deep · 87 km away
  5. 4.4111 km SSW of Hihifo, Tonga · 3852 days ago · 149 km deep · 70 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20005ge8. Read Sun, Oct 4, 2026, 3:15 PM UTC.