Tonga earthquakes

M4.8 earthquake 148 km N of Neiafu, Tonga

A magnitude 4.8 earthquake struck 148 km N of Neiafu, Tonga on Wed, Oct 14, 2020, 1:20 PM GMT-12 (01:20 UTC), 54 km (34 mi) below the surface.

A larger quake followed: M5.0 142 km NNW of Neiafu, Tonga. This one was a foreshock.

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

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The earthquake

Magnitude
4.8 (mb), light
Local time
UTC
2020-10-15 01:20:29 UTC
Depth
54.3 km (33.8 mi), shallow
Epicenter
17.316° S, 173.860° 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 7.1 km horizontally, 6.1 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
61°
Stations used
48

Nearby

Within 100 km, magnitude 1.8 and up: 13 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 4.1111 km SSE of Hihifo, Tonga · 2175 days ago · 76 km deep · 58 km away
  2. 4.665 km S of Hihifo, Tonga · 2170 days ago · 70 km deep · 87 km away
  3. 4.2106 km SSW of Hihifo, Tonga · 2166 days ago · 141 km deep · 52 km away
  4. 4.9133 km SSW of Hihifo, Tonga · 2150 days ago · 134 km deep · 39 km away
  5. 4.3109 km SSE of Hihifo, Tonga · 2149 days ago · 32 km deep · 86 km away
  6. 4.377 km SW of Hihifo, Tonga · 2148 days ago · 110 km deep · 98 km away
  7. 4.996 km SSE of Hihifo, Tonga · 2140 days ago · 84 km deep · 63 km away
  8. 4.7100 km SSE of Hihifo, Tonga · 2140 days ago · 83 km deep · 77 km away
  9. 4.695 km SSE of Hihifo, Tonga · 2134 days ago · 10 km deep · 69 km away
  10. 4.693 km SSE of Hihifo, Tonga · 2134 days ago · 19 km deep · 70 km away
  11. 4.380 km NE of Neiafu, Tonga · 2134 days ago · 35 km deep · 89 km away
  12. 5.0142 km NNW of Neiafu, Tonga · 2131 days ago · 10 km deep · 87 km away
  13. 4.6125 km NNW of Neiafu, Tonga · 2129 days ago · 10 km deep · 86 km away

Before

  1. 4.770 km S of Hihifo, Tonga · 2179 days ago · 49 km deep · 83 km away
  2. 4.4138 km SW of Hihifo, Tonga · 2197 days ago · 213 km deep · 91 km away
  3. 4.462 km SSW of Hihifo, Tonga · 2200 days ago · 77 km deep · 99 km away
  4. 4.2144 km NE of Neiafu, Tonga · 2203 days ago · 31 km deep · 75 km away
  5. 4.4143 km SSW of Hihifo, Tonga · 2205 days ago · 131 km deep · 48 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000c8el. Read Wed, Sep 30, 2026, 9:27 PM UTC.