Tonga earthquakes

M4.7 earthquake 246 km SSE of ‘Ohonua, Tonga

A magnitude 4.7 earthquake struck 246 km SSE of ‘Ohonua, Tonga on Mon, Nov 1, 2021, 1:21 PM GMT+13 (00:21 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.5 226 km S of ‘Ohonua, Tonga. This one was a foreshock.

Nuku‘alofa forecastMore in Tonga

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
2021-11-01 00:21:36 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
23.511° S, 174.454° 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 8.3 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.08
Depth from
Operator assigned
Station coverage gap
101°
Stations used
46

Nearest places

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

Nearby

Within 100 km, magnitude 1.7 and up: 12 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.7148 km S of ‘Ohonua, Tonga · 1794 days ago · 10 km deep · 100 km away
  2. 4.2148 km SSE of ‘Ohonua, Tonga · 1787 days ago · 10 km deep · 99 km away
  3. 5.2152 km SSE of ‘Ohonua, Tonga · 1777 days ago · 10 km deep · 97 km away
  4. 4.8246 km S of ‘Ohonua, Tonga · 1773 days ago · 10 km deep · 64 km away
  5. 5.5226 km S of ‘Ohonua, Tonga · 1762 days ago · 10 km deep · 58 km away
  6. 4.6229 km S of ‘Ohonua, Tonga · 1762 days ago · 10 km deep · 33 km away
  7. 4.9220 km S of ‘Ohonua, Tonga · 1762 days ago · 10 km deep · 96 km away
  8. 4.7274 km S of ‘Ohonua, Tonga · 1761 days ago · 10 km deep · 39 km away
  9. 4.6282 km S of ‘Ohonua, Tonga · 1758 days ago · 10 km deep · 84 km away
  10. 5.1256 km S of ‘Ohonua, Tonga · 1755 days ago · 10 km deep · 84 km away
  11. 4.4264 km S of ‘Ohonua, Tonga · 1741 days ago · 10 km deep · 90 km away
  12. 4.9211 km S of ‘Ohonua, Tonga · 1739 days ago · 10 km deep · 88 km away

Before

  1. 4.5201 km SSE of ‘Ohonua, Tonga · 1796 days ago · 10 km deep · 71 km away
  2. 5.0169 km S of ‘Ohonua, Tonga · 1798 days ago · 10 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000fqdi. Read Wed, Sep 30, 2026, 4:49 AM UTC.