Tonga earthquakes

M4.3 earthquake 85 km NNE of Hihifo, Tonga

A magnitude 4.3 earthquake struck 85 km NNE of Hihifo, Tonga on Mon, Nov 22, 2021, 3:25 AM GMT+13 (14:25 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M5.4 130 km NE 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
4.3 (mb), light
Local time
UTC
2021-11-21 14:25:38 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
15.269° S, 173.431° 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 14.9 km horizontally, 2.0 km in depth
Magnitude uncertainty
±0.20
Depth from
Operator assigned
Station coverage gap
143°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 4.858 km N of Hihifo, Tonga · 1772 days ago · 10 km deep · 36 km away
  2. 5.4130 km NE of Hihifo, Tonga · 1769 days ago · 10 km deep · 49 km away · felt by 4
  3. 5.2114 km NNE of Hihifo, Tonga · 1769 days ago · 10 km deep · 29 km away · felt by 2
  4. 4.5102 km NNE of Hihifo, Tonga · 1764 days ago · 10 km deep · 19 km away
  5. 5.1121 km NE of Hihifo, Tonga · 1760 days ago · 10 km deep · 40 km away · felt by 1
  6. 4.4113 km ENE of Hihifo, Tonga · 1760 days ago · 10 km deep · 62 km away
  7. 4.298 km NW of Hihifo, Tonga · 1758 days ago · 214 km deep · 100 km away
  8. 4.5101 km NNW of Hihifo, Tonga · 1744 days ago · 10 km deep · 86 km away
  9. 4.4107 km N of Hihifo, Tonga · 1733 days ago · 10 km deep · 48 km away
  10. 5.079 km ENE of Hihifo, Tonga · 1723 days ago · 35 km deep · 59 km away
  11. 4.68 km SSE of Hihifo, Tonga · 1719 days ago · 77 km deep · 92 km away

Before

  1. 4.2115 km NNE of Hihifo, Tonga · 1781 days ago · 10 km deep · 37 km away
  2. 4.875 km E of Hihifo, Tonga · 1782 days ago · 10 km deep · 82 km away
  3. 4.294 km NE of Hihifo, Tonga · 1792 days ago · 10 km deep · 38 km away
  4. 4.313 km E of Hihifo, Tonga · 1793 days ago · 71 km deep · 83 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000fx1g. Read Wed, Sep 30, 2026, 9:50 AM UTC.