Tonga earthquakes

M4.2 earthquake 82 km SSW of Hihifo, Tonga

A magnitude 4.2 earthquake struck 82 km SSW of Hihifo, Tonga on Mon, May 16, 2016, 5:35 AM GMT+13 (16:35 UTC), 128 km (79 mi) below the surface.

A larger quake followed: M5.2 105 km SSE of Hihifo, Tonga. This one was a foreshock.

Apia 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
4.2 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-05-15 16:35:12 UTC
Depth
127.9 km (79.4 mi), intermediate-depth
Epicenter
16.646° S, 174.077° 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 11.1 km horizontally, 5.0 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
79°
Stations used
43

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 4.2111 km SSW of Hihifo, Tonga · 3789 days ago · 222 km deep · 30 km away
  2. 5.2105 km SSE of Hihifo, Tonga · 3768 days ago · 40 km deep · 63 km away
  3. 4.3150 km NNW of Neiafu, Tonga · 3766 days ago · 90 km deep · 78 km away
  4. 4.563 km S of Hihifo, Tonga · 3757 days ago · 47 km deep · 41 km away
  5. 4.6115 km SSW of Hihifo, Tonga · 3755 days ago · 91 km deep · 34 km away
  6. 4.414 km N of Hihifo, Tonga · 3739 days ago · 70 km deep · 96 km away
  7. 4.7120 km WSW of Hihifo, Tonga · 3738 days ago · 254 km deep · 83 km away

Before

  1. 4.439 km WSW of Hihifo, Tonga · 3798 days ago · 139 km deep · 61 km away
  2. 4.225 km WSW of Hihifo, Tonga · 3800 days ago · 83 km deep · 70 km away
  3. 4.3140 km SSW of Hihifo, Tonga · 3802 days ago · 191 km deep · 59 km away
  4. 4.6133 km N of Neiafu, Tonga · 3806 days ago · 61 km deep · 89 km away
  5. 4.4137 km SSW of Hihifo, Tonga · 3808 days ago · 92 km deep · 56 km away · felt by 1
  6. 4.6143 km NNW of Neiafu, Tonga · 3813 days ago · 103 km deep · 85 km away
  7. 4.693 km SSE of Hihifo, Tonga · 3814 days ago · 10 km deep · 74 km away
  8. 4.5117 km SSW of Hihifo, Tonga · 3819 days ago · 64 km deep · 39 km away
  9. 4.43 km SSE of Hihifo, Tonga · 3820 days ago · 114 km deep · 80 km away
  10. 4.463 km SE of Hihifo, Tonga · 3820 days ago · 10 km deep · 87 km away
  11. 4.6135 km SSW of Hihifo, Tonga · 3821 days ago · 69 km deep · 54 km away
  12. 4.5149 km SSW of Hihifo, Tonga · 3822 days ago · 61 km deep · 67 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10005ixd. Read Sun, Oct 4, 2026, 5:35 PM UTC.