Tonga earthquakes

M4.4 earthquake 137 km N of Neiafu, Tonga

A magnitude 4.4 earthquake struck 137 km N of Neiafu, Tonga on Mon, Nov 15, 2021, 5:23 AM GMT-12 (17:23 UTC), 76 km (47 mi) below the surface.

A larger quake followed: M5.6 124 km SSE of Hihifo, 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
4.4 (mb), light
Local time
UTC
2021-11-15 17:23:38 UTC
Depth
76.3 km (47.4 mi), intermediate-depth
Epicenter
17.410° S, 173.948° 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 16.6 km horizontally, 9.7 km in depth
Magnitude uncertainty
±0.27
Depth from
From location
Station coverage gap
138°
Stations used
13

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 4.6114 km NE of Neiafu, Tonga · 1764 days ago · 10 km deep · 87 km away
  2. 4.5103 km NNW of Neiafu, Tonga · 1760 days ago · 80 km deep · 59 km away
  3. 4.379 km NNE of Neiafu, Tonga · 1758 days ago · 35 km deep · 80 km away
  4. 4.6120 km SSW of Hihifo, Tonga · 1752 days ago · 89 km deep · 52 km away
  5. 4.558 km N of Neiafu, Tonga · 1743 days ago · 10 km deep · 80 km away
  6. 5.6124 km SSE of Hihifo, Tonga · 1740 days ago · 43 km deep · 64 km away · felt by 5
  7. 4.6126 km SSW of Hihifo, Tonga · 1733 days ago · 61 km deep · 51 km away
  8. 4.668 km NNW of Neiafu, Tonga · 1732 days ago · 85 km deep · 79 km away
  9. 4.270 km NNW of Neiafu, Tonga · 1729 days ago · 138 km deep · 87 km away
  10. 4.3120 km SSW of Hihifo, Tonga · 1727 days ago · 124 km deep · 48 km away
  11. 4.493 km SSW of Hihifo, Tonga · 1725 days ago · 112 km deep · 73 km away

Before

  1. 4.285 km NNW of Neiafu, Tonga · 1787 days ago · 67 km deep · 72 km away
  2. 4.2124 km S of Hihifo, Tonga · 1788 days ago · 35 km deep · 47 km away
  3. 4.4131 km SSW of Hihifo, Tonga · 1789 days ago · 219 km deep · 64 km away
  4. 4.2144 km NW of Neiafu, Tonga · 1792 days ago · 262 km deep · 94 km away
  5. 4.774 km SSE of Hihifo, Tonga · 1793 days ago · 10 km deep · 97 km away
  6. 4.6125 km NNW of Neiafu, Tonga · 1794 days ago · 176 km deep · 68 km away
  7. 4.1138 km NNE of Neiafu, Tonga · 1796 days ago · 35 km deep · 52 km away
  8. 5.0121 km S of Hihifo, Tonga · 1803 days ago · 75 km deep · 41 km away
  9. 4.1168 km NNW of Neiafu, Tonga · 1804 days ago · 308 km deep · 90 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000fvhc. Read Wed, Sep 30, 2026, 6:58 AM UTC.