Tonga earthquakes

M4.6 earthquake 104 km NNE of Hihifo, Tonga

A magnitude 4.6 earthquake struck 104 km NNE of Hihifo, Tonga on Sat, May 21, 2016, 4:16 AM GMT+13 (15:16 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M6.0 115 km NNE of Hihifo, Tonga. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
4.6 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2016-05-20 15:16:42 UTC
Depth
22.6 km (14.0 mi), shallow
Epicenter
15.050° S, 173.517° 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 9.0 km horizontally, 8.0 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
160°
Stations used
21

Nearest places

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

Nearby

Within 100 km, magnitude 1.6 and up: 14 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.9134 km NE of Hihifo, Tonga · 3789 days ago · 10 km deep · 71 km away
  2. 4.4100 km ENE of Hihifo, Tonga · 3776 days ago · 10 km deep · 78 km away
  3. 5.487 km ENE of Hihifo, Tonga · 3775 days ago · 25 km deep · 72 km away
  4. 4.496 km ENE of Hihifo, Tonga · 3769 days ago · 10 km deep · 92 km away
  5. 4.8114 km ENE of Hihifo, Tonga · 3768 days ago · 22 km deep · 91 km away
  6. 4.468 km NNW of Hihifo, Tonga · 3766 days ago · 70 km deep · 69 km away
  7. 4.5103 km NE of Hihifo, Tonga · 3765 days ago · 10 km deep · 54 km away
  8. 4.687 km NE of Hihifo, Tonga · 3747 days ago · 20 km deep · 53 km away
  9. 4.6135 km NNE of Hihifo, Tonga · 3746 days ago · 30 km deep · 40 km away
  10. 4.7141 km NE of Hihifo, Tonga · 3746 days ago · 40 km deep · 61 km away
  11. 4.414 km N of Hihifo, Tonga · 3739 days ago · 70 km deep · 91 km away
  12. 4.668 km N of Hihifo, Tonga · 3739 days ago · 67 km deep · 50 km away
  13. 5.8142 km NE of Hihifo, Tonga · 3738 days ago · 8 km deep · 69 km away
  14. 6.0115 km NNE of Hihifo, Tonga · 3738 days ago · 8 km deep · 34 km away

Before

  1. 4.3147 km N of Hihifo, Tonga · 3793 days ago · 10 km deep · 45 km away
  2. 4.5108 km NNE of Hihifo, Tonga · 3801 days ago · 10 km deep · 31 km away
  3. 4.4107 km NNE of Hihifo, Tonga · 3802 days ago · 35 km deep · 18 km away
  4. 4.524 km NNE of Hihifo, Tonga · 3804 days ago · 71 km deep · 81 km away
  5. 4.7110 km NNE of Hihifo, Tonga · 3810 days ago · 35 km deep · 17 km away
  6. 4.5141 km SSW of Gataivai, Samoa · 3818 days ago · 10 km deep · 64 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20005y4p. Read Sun, Oct 4, 2026, 10:32 PM UTC.