Tonga earthquakes

M4.4 earthquake 16 km SSW of Hihifo, Tonga

A magnitude 4.4 earthquake struck 16 km SSW of Hihifo, Tonga on Mon, Mar 20, 2023, 7:17 AM GMT+13 (18:17 UTC), 96 km (59 mi) below the surface.

A larger quake followed: M7.6 82 km WNW 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, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-03-19 18:17:27 UTC
Depth
95.6 km (59.4 mi), intermediate-depth
Epicenter
16.090° S, 173.863° 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 9.5 km horizontally, 7.8 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
66°
Stations used
24

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 18 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.6Tonga · 1287 days ago · 9 km deep · 98 km away
  2. 4.510 km N of Hihifo, Tonga · 1271 days ago · 143 km deep · 27 km away
  3. 4.8Tonga · 1257 days ago · 11 km deep · 93 km away
  4. 4.5100 km SSW of Hihifo, Tonga · 1250 days ago · 144 km deep · 85 km away
  5. 7.682 km WNW of Hihifo, Tonga · 1241 days ago · 210 km deep · 85 km away · felt by 26 · tsunami flag
  6. 4.848 km WNW of Hihifo, Tonga · 1241 days ago · 175 km deep · 50 km away
  7. 4.780 km WNW of Hihifo, Tonga · 1241 days ago · 166 km deep · 83 km away
  8. 5.074 km WNW of Hihifo, Tonga · 1241 days ago · 199 km deep · 78 km away
  9. 4.798 km WNW of Hihifo, Tonga · 1241 days ago · 223 km deep · 100 km away
  10. 4.4Tonga · 1241 days ago · 207 km deep · 94 km away
  11. 4.472 km WNW of Hihifo, Tonga · 1241 days ago · 185 km deep · 75 km away
  12. 4.694 km WNW of Hihifo, Tonga · 1241 days ago · 212 km deep · 96 km away
  13. 4.4Tonga · 1241 days ago · 183 km deep · 72 km away
  14. 4.0Tonga · 1241 days ago · 177 km deep · 92 km away
  15. 4.076 km NNE of Hihifo, Tonga · 1240 days ago · 35 km deep · 94 km away
  16. 4.471 km WNW of Hihifo, Tonga · 1239 days ago · 184 km deep · 74 km away
  17. 4.4Tonga · 1236 days ago · 178 km deep · 45 km away
  18. 4.289 km WNW of Hihifo, Tonga · 1233 days ago · 163 km deep · 91 km away

Before

  1. 4.468 km WNW of Hihifo, Tonga · 1295 days ago · 143 km deep · 72 km away
  2. 5.2Tonga · 1308 days ago · 55 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000jmf4. Read Fri, Oct 2, 2026, 9:56 AM UTC.