Tonga earthquakes

M4.4 earthquake 113 km ENE of Hihifo, Tonga

A magnitude 4.4 earthquake struck 113 km ENE of Hihifo, Tonga on Mon, Dec 6, 2021, 8:29 AM GMT+13 (19:29 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.0 79 km ENE 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
4.4 (mb), light
Local time
UTC
2021-12-05 19:29:33 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
15.445° S, 172.882° 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 7.6 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.15
Depth from
Operator assigned
Station coverage gap
75°
Stations used
20

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 4.789 km ESE of Hihifo, Tonga · 1728 days ago · 10 km deep · 78 km away
  2. 5.079 km ENE of Hihifo, Tonga · 1723 days ago · 35 km deep · 36 km away
  3. 4.7143 km E of Hihifo, Tonga · 1709 days ago · 10 km deep · 55 km away

Before

  1. 5.1121 km NE of Hihifo, Tonga · 1760 days ago · 10 km deep · 47 km away · felt by 1
  2. 4.5102 km NNE of Hihifo, Tonga · 1764 days ago · 10 km deep · 70 km away
  3. 5.2114 km NNE of Hihifo, Tonga · 1769 days ago · 10 km deep · 63 km away · felt by 2
  4. 5.4130 km NE of Hihifo, Tonga · 1769 days ago · 10 km deep · 52 km away · felt by 4
  5. 4.858 km N of Hihifo, Tonga · 1772 days ago · 10 km deep · 89 km away
  6. 4.385 km NNE of Hihifo, Tonga · 1774 days ago · 35 km deep · 62 km away
  7. 4.3153 km ENE of Hihifo, Tonga · 1776 days ago · 10 km deep · 52 km away
  8. 4.2115 km NNE of Hihifo, Tonga · 1781 days ago · 10 km deep · 87 km away
  9. 4.875 km E of Hihifo, Tonga · 1782 days ago · 10 km deep · 58 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000gax1. Read Wed, Sep 30, 2026, 3:28 PM UTC.