Tonga earthquakes

M4.7 earthquake 74 km SSE of Hihifo, Tonga

A magnitude 4.7 earthquake struck 74 km SSE of Hihifo, Tonga on Wed, Nov 3, 2021, 5:12 AM GMT+13 (16:12 UTC), 10 km (6 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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Map

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

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The earthquake

Magnitude
4.7 (mb), light
Local time
UTC
2021-11-02 16:12:12 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
16.602° S, 173.600° 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 11.7 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.08
Depth from
Operator assigned
Station coverage gap
124°
Stations used
57

Nearest places

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

Nearby

Within 100 km, magnitude 1.7 and up: 9 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 4.4131 km SSW of Hihifo, Tonga · 1789 days ago · 219 km deep · 93 km away
  2. 4.636 km SSE of Hihifo, Tonga · 1789 days ago · 73 km deep · 40 km away
  3. 4.2124 km S of Hihifo, Tonga · 1788 days ago · 35 km deep · 53 km away
  4. 4.875 km E of Hihifo, Tonga · 1782 days ago · 10 km deep · 92 km away
  5. 4.4137 km N of Neiafu, Tonga · 1780 days ago · 76 km deep · 97 km away
  6. 4.6120 km SSW of Hihifo, Tonga · 1752 days ago · 89 km deep · 74 km away
  7. 4.695 km SE of Hihifo, Tonga · 1746 days ago · 10 km deep · 44 km away
  8. 5.6124 km SSE of Hihifo, Tonga · 1740 days ago · 43 km deep · 50 km away · felt by 5
  9. 4.6126 km SSW of Hihifo, Tonga · 1733 days ago · 61 km deep · 81 km away

Before

  1. 4.313 km E of Hihifo, Tonga · 1793 days ago · 71 km deep · 70 km away
  2. 4.6106 km ESE of Hihifo, Tonga · 1797 days ago · 10 km deep · 95 km away
  3. 5.0121 km S of Hihifo, Tonga · 1803 days ago · 75 km deep · 62 km away
  4. 4.331 km ESE of Hihifo, Tonga · 1810 days ago · 107 km deep · 58 km away
  5. 4.5108 km SSW of Hihifo, Tonga · 1813 days ago · 156 km deep · 67 km away
  6. 4.3142 km N of Neiafu, Tonga · 1821 days ago · 105 km deep · 94 km away
  7. 4.5120 km S of Hihifo, Tonga · 1822 days ago · 63 km deep · 48 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000fqv5. Read Wed, Sep 30, 2026, 8:12 AM UTC.