Tonga earthquakes

M4.3 earthquake 159 km NW of Neiafu, Tonga

A magnitude 4.3 earthquake struck 159 km NW of Neiafu, Tonga on Wed, Oct 21, 2020, 6:25 PM GMT+13 (05:25 UTC), 210 km (130 mi) below the surface.

A larger quake followed: M5.9 152 km NW of Neiafu, 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
4.3 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2020-10-21 05:25:51 UTC
Depth
209.6 km (130.2 mi), intermediate-depth
Epicenter
17.574° S, 174.992° 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 10.6 km horizontally, 7.9 km in depth
Magnitude uncertainty
±0.12
Depth from
From location
Station coverage gap
72°
Stations used
32

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 5.083 km NW of Neiafu, Tonga · 2163 days ago · 79 km deep · 82 km away
  2. 4.6124 km NW of Neiafu, Tonga · 2151 days ago · 10 km deep · 44 km away
  3. 4.6125 km NW of Neiafu, Tonga · 2151 days ago · 261 km deep · 46 km away
  4. 4.4170 km WNW of Neiafu, Tonga · 2144 days ago · 218 km deep · 76 km away
  5. 4.4119 km WNW of Neiafu, Tonga · 2131 days ago · 252 km deep · 64 km away
  6. 5.6136 km NW of Neiafu, Tonga · 2131 days ago · 10 km deep · 26 km away
  7. 5.0142 km NNW of Neiafu, Tonga · 2131 days ago · 10 km deep · 37 km away
  8. 4.296 km NW of Neiafu, Tonga · 2131 days ago · 59 km deep · 65 km away
  9. 4.6125 km NNW of Neiafu, Tonga · 2130 days ago · 10 km deep · 45 km away
  10. 5.9152 km NW of Neiafu, Tonga · 2120 days ago · 10 km deep · 13 km away
  11. 4.7204 km SW of Hihifo, Tonga · 2120 days ago · 10 km deep · 55 km away
  12. 4.3135 km SSW of Hihifo, Tonga · 2116 days ago · 84 km deep · 96 km away

Before

  1. 4.4138 km SW of Hihifo, Tonga · 2198 days ago · 213 km deep · 83 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000c6al. Read Thu, Oct 1, 2026, 6:41 AM UTC.