Tonga earthquakes

M4.4 earthquake 24 km ESE of Hihifo, Tonga

A magnitude 4.4 earthquake struck 24 km ESE of Hihifo, Tonga on Wed, Jul 22, 2020, 8:02 AM GMT+13 (19:02 UTC), 115 km (71 mi) below the surface.

A larger quake followed: M5.6 79 km NNW of Hihifo, Tonga. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
4.4 (mb), light
Local time
UTC
2020-07-21 19:02:54 UTC
Depth
114.5 km (71.2 mi), intermediate-depth
Epicenter
16.047° S, 173.587° 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 8.4 km horizontally, 8.2 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
89°
Stations used
28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 7 in the 30 days before it.

After

  1. 5.0100 km SSE of Hihifo, Tonga · 2254 days ago · 13 km deep · 85 km away
  2. 4.550 km SW of Hihifo, Tonga · 2251 days ago · 116 km deep · 66 km away
  3. 4.678 km SSW of Hihifo, Tonga · 2243 days ago · 81 km deep · 81 km away
  4. 4.5Tonga · 2241 days ago · 104 km deep · 80 km away
  5. 4.831 km NNE of Hihifo, Tonga · 2238 days ago · 38 km deep · 42 km away · felt by 1
  6. 4.885 km ESE of Hihifo, Tonga · 2236 days ago · 10 km deep · 61 km away
  7. 4.771 km ESE of Hihifo, Tonga · 2230 days ago · 10 km deep · 47 km away
  8. 4.686 km ESE of Hihifo, Tonga · 2229 days ago · 10 km deep · 63 km away
  9. 5.679 km NNW of Hihifo, Tonga · 2228 days ago · 10 km deep · 100 km away
  10. 4.570 km ESE of Hihifo, Tonga · 2228 days ago · 10 km deep · 46 km away
  11. 4.546 km SSW of Hihifo, Tonga · 2218 days ago · 59 km deep · 54 km away
  12. 4.181 km NE of Hihifo, Tonga · 2216 days ago · 10 km deep · 81 km away
  13. 4.485 km SE of Hihifo, Tonga · 2210 days ago · 79 km deep · 65 km away

Before

  1. 4.692 km ESE of Hihifo, Tonga · 2262 days ago · 10 km deep · 69 km away
  2. 4.696 km SE of Hihifo, Tonga · 2263 days ago · 10 km deep · 72 km away
  3. 4.4119 km E of Hihifo, Tonga · 2272 days ago · 10 km deep · 96 km away
  4. 4.593 km ENE of Hihifo, Tonga · 2275 days ago · 10 km deep · 81 km away
  5. 4.556 km N of Hihifo, Tonga · 2275 days ago · 121 km deep · 71 km away
  6. 4.810 km NW of Hihifo, Tonga · 2278 days ago · 108 km deep · 34 km away
  7. 4.375 km ESE of Hihifo, Tonga · 2286 days ago · 10 km deep · 51 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000b565. Read Wed, Sep 30, 2026, 10:20 PM UTC.