Tonga earthquakes

M4.8 earthquake 31 km NNE of Hihifo, Tonga

A magnitude 4.8 earthquake struck 31 km NNE of Hihifo, Tonga on Sat, Aug 15, 2020, 12:50 AM GMT+13 (11:50 UTC), 38 km (24 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
4.8 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2020-08-14 11:50:48 UTC
Depth
38.3 km (23.8 mi), shallow
Epicenter
15.682° S, 173.701° W
Region
Tonga
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 10.8 km horizontally, 6.5 km in depth
Magnitude uncertainty
±0.04
Depth from
From location
Station coverage gap
77°
Stations used
58

Nearest places

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

Nearby

Within 100 km, magnitude 1.8 and up: 19 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 4.8111 km NE of Hihifo, Tonga · 2239 days ago · 10 km deep · 82 km away
  2. 4.6111 km NNE of Hihifo, Tonga · 2238 days ago · 10 km deep · 81 km away
  3. 4.885 km ESE of Hihifo, Tonga · 2237 days ago · 10 km deep · 93 km away
  4. 4.771 km ESE of Hihifo, Tonga · 2231 days ago · 10 km deep · 78 km away
  5. 4.686 km ESE of Hihifo, Tonga · 2230 days ago · 10 km deep · 91 km away
  6. 4.5108 km NW of Hihifo, Tonga · 2230 days ago · 10 km deep · 93 km away
  7. 5.679 km NNW of Hihifo, Tonga · 2230 days ago · 10 km deep · 60 km away
  8. 4.570 km ESE of Hihifo, Tonga · 2229 days ago · 10 km deep · 78 km away
  9. 4.7102 km NNE of Hihifo, Tonga · 2224 days ago · 10 km deep · 71 km away
  10. 4.546 km SSW of Hihifo, Tonga · 2220 days ago · 59 km deep · 79 km away
  11. 4.181 km NE of Hihifo, Tonga · 2218 days ago · 10 km deep · 52 km away
  12. 5.4123 km NE of Hihifo, Tonga · 2215 days ago · 25 km deep · 96 km away · felt by 2
  13. 4.7109 km NE of Hihifo, Tonga · 2209 days ago · 10 km deep · 85 km away
  14. 4.0121 km NNE of Hihifo, Tonga · 2206 days ago · 35 km deep · 90 km away
  15. 4.7106 km NNE of Hihifo, Tonga · 2206 days ago · 20 km deep · 75 km away
  16. 4.377 km ESE of Hihifo, Tonga · 2203 days ago · 13 km deep · 82 km away
  17. 4.462 km SSW of Hihifo, Tonga · 2201 days ago · 77 km deep · 94 km away
  18. 4.3108 km NNE of Hihifo, Tonga · 2198 days ago · 10 km deep · 77 km away
  19. 5.193 km NNW of Hihifo, Tonga · 2194 days ago · 10 km deep · 70 km away

Before

  1. 4.6126 km NNE of Hihifo, Tonga · 2241 days ago · 10 km deep · 96 km away · felt by 1
  2. 4.5Tonga · 2243 days ago · 104 km deep · 39 km away
  3. 4.4110 km NNE of Hihifo, Tonga · 2244 days ago · 10 km deep · 80 km away
  4. 4.4115 km NE of Hihifo, Tonga · 2245 days ago · 10 km deep · 87 km away
  5. 4.550 km SW of Hihifo, Tonga · 2252 days ago · 116 km deep · 78 km away
  6. 4.6111 km NE of Hihifo, Tonga · 2253 days ago · 10 km deep · 83 km away
  7. 4.6113 km NE of Hihifo, Tonga · 2263 days ago · 10 km deep · 85 km away
  8. 4.424 km ESE of Hihifo, Tonga · 2264 days ago · 115 km deep · 42 km away
  9. 4.4112 km NE of Hihifo, Tonga · 2264 days ago · 10 km deep · 82 km away
  10. 4.692 km ESE of Hihifo, Tonga · 2264 days ago · 10 km deep · 96 km away
  11. 4.399 km NNE of Hihifo, Tonga · 2266 days ago · 10 km deep · 68 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000bemn. Read Fri, Oct 2, 2026, 8:55 AM UTC.