Tonga earthquakes

M5.1 earthquake 210 km S of ‘Ohonua, Tonga

A magnitude 5.1 earthquake struck 210 km S of ‘Ohonua, Tonga on Thu, Dec 27, 2018, 12:36 PM GMT+13 (23:36 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.2 147 km SSE 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
5.1 (mb), moderate
Local time
UTC
2018-12-26 23:36:20 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
23.235° S, 174.905° 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 12.4 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.10
Depth from
Operator assigned
Station coverage gap
52°
Stations used
44

Nearest places

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

Nearby

Within 100 km, magnitude 2.1 and up: 9 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.7219 km S of ‘Ohonua, Tonga · 2835 days ago · 10 km deep · 25 km away
  2. 4.9217 km S of ‘Ohonua, Tonga · 2835 days ago · 10 km deep · 19 km away
  3. 4.9210 km S of ‘Ohonua, Tonga · 2834 days ago · 10 km deep · 23 km away
  4. 4.8220 km SSW of ‘Ohonua, Tonga · 2834 days ago · 46 km deep · 99 km away
  5. 4.9262 km S of ‘Ohonua, Tonga · 2832 days ago · 10 km deep · 53 km away
  6. 4.5140 km SSW of ‘Ohonua, Tonga · 2820 days ago · 35 km deep · 93 km away
  7. 5.1161 km SSE of ‘Ohonua, Tonga · 2817 days ago · 10 km deep · 92 km away
  8. 5.2147 km SSE of ‘Ohonua, Tonga · 2807 days ago · 10 km deep · 91 km away
  9. 4.7273 km S of ‘Ohonua, Tonga · 2776 days ago · 10 km deep · 67 km away

Before

  1. 4.7236 km S of ‘Ohonua, Tonga · 2837 days ago · 10 km deep · 30 km away
  2. 4.5173 km SSE of ‘Ohonua, Tonga · 2857 days ago · 10 km deep · 98 km away
  3. 4.4202 km SSE of ‘Ohonua, Tonga · 2858 days ago · 10 km deep · 64 km away
  4. 4.8186 km SSE of ‘Ohonua, Tonga · 2858 days ago · 10 km deep · 65 km away
  5. 5.1156 km S of ‘Ohonua, Tonga · 2858 days ago · 10 km deep · 60 km away
  6. 4.8173 km S of ‘Ohonua, Tonga · 2862 days ago · 10 km deep · 40 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000ixw6 (also filed as iscgem614461862). Read Wed, Sep 30, 2026, 11:48 PM UTC.