Tonga earthquakes

M4.7 earthquake Tonga region

A magnitude 4.7 earthquake struck in the Tonga region on Tue, Jan 3, 2023, 2:17 PM GMT+13 (01:17 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.6 211 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, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-01-03 01:17:26 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
23.349° S, 174.547° 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 9.1 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.21
Depth from
Operator assigned
Station coverage gap
96°
Stations used
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.7 and up: 13 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.5222 km S of ‘Ohonua, Tonga · 1361 days ago · 10 km deep · 32 km away
  2. 4.4Tonga region · 1361 days ago · 10 km deep · 18 km away
  3. 5.6211 km S of ‘Ohonua, Tonga · 1360 days ago · 10 km deep · 79 km away
  4. 4.7Tonga region · 1360 days ago · 10 km deep · 84 km away
  5. 4.7219 km S of ‘Ohonua, Tonga · 1359 days ago · 10 km deep · 41 km away
  6. 5.3201 km S of ‘Ohonua, Tonga · 1359 days ago · 10 km deep · 65 km away
  7. 4.8215 km S of ‘Ohonua, Tonga · 1359 days ago · 10 km deep · 19 km away
  8. 5.2215 km S of ‘Ohonua, Tonga · 1359 days ago · 10 km deep · 34 km away
  9. 4.6224 km S of ‘Ohonua, Tonga · 1359 days ago · 10 km deep · 29 km away
  10. 4.4201 km S of ‘Ohonua, Tonga · 1359 days ago · 10 km deep · 39 km away
  11. 4.5Tonga region · 1359 days ago · 10 km deep · 51 km away
  12. 4.4Tonga region · 1337 days ago · 10 km deep · 47 km away
  13. 4.9139 km S of ‘Ohonua, Tonga · 1312 days ago · 10 km deep · 99 km away

Before

  1. 4.8202 km S of ‘Ohonua, Tonga · 1372 days ago · 10 km deep · 78 km away
  2. 4.5157 km SSE of ‘Ohonua, Tonga · 1394 days ago · 10 km deep · 75 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000j456. Read Fri, Oct 2, 2026, 5:16 PM UTC.