Tonga earthquakes

M4.2 earthquake 93 km WSW of Hihifo, Tonga

A magnitude 4.2 earthquake struck 93 km WSW of Hihifo, Tonga on Tue, May 30, 2023, 7:39 PM GMT-12 (07:39 UTC), 175 km (109 mi) below the surface.

A larger quake followed: M4.8 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
4.2 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2023-05-31 07:39:54 UTC
Depth
175.2 km (108.8 mi), intermediate-depth
Epicenter
16.402° S, 174.536° 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 6.4 km horizontally, 8.1 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
62°
Stations used
27

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 18 in the 30 days before it.

After

  1. 4.173 km WNW of Hihifo, Tonga · 1213 days ago · 180 km deep · 81 km away
  2. 4.8Tonga · 1211 days ago · 103 km deep · 81 km away
  3. 4.1146 km SSW of Hihifo, Tonga · 1209 days ago · 131 km deep · 92 km away
  4. 4.3111 km WNW of Hihifo, Tonga · 1209 days ago · 285 km deep · 92 km away
  5. 4.2133 km SSW of Hihifo, Tonga · 1203 days ago · 96 km deep · 83 km away
  6. 4.352 km SSW of Hihifo, Tonga · 1203 days ago · 62 km deep · 60 km away
  7. 4.3106 km WNW of Hihifo, Tonga · 1178 days ago · 285 km deep · 86 km away
  8. 4.237 km SW of Hihifo, Tonga · 1177 days ago · 110 km deep · 58 km away
  9. 4.1127 km SSW of Hihifo, Tonga · 1175 days ago · 174 km deep · 59 km away
  10. 4.289 km WNW of Hihifo, Tonga · 1175 days ago · 138 km deep · 72 km away
  11. 4.5153 km SW of Hihifo, Tonga · 1173 days ago · 205 km deep · 64 km away
  12. 4.2121 km SSW of Hihifo, Tonga · 1173 days ago · 136 km deep · 72 km away
  13. 4.3145 km SSW of Hihifo, Tonga · 1171 days ago · 128 km deep · 92 km away

Before

  1. 4.387 km WNW of Hihifo, Tonga · 1221 days ago · 197 km deep · 99 km away
  2. 4.083 km WNW of Hihifo, Tonga · 1221 days ago · 153 km deep · 82 km away
  3. 4.077 km WSW of Hihifo, Tonga · 1226 days ago · 190 km deep · 16 km away
  4. 4.390 km WNW of Hihifo, Tonga · 1230 days ago · 192 km deep · 94 km away
  5. 4.289 km WNW of Hihifo, Tonga · 1233 days ago · 163 km deep · 84 km away
  6. 4.4Tonga · 1236 days ago · 178 km deep · 35 km away
  7. 4.471 km WNW of Hihifo, Tonga · 1239 days ago · 184 km deep · 84 km away
  8. 4.3106 km WNW of Hihifo, Tonga · 1240 days ago · 196 km deep · 97 km away
  9. 4.0Tonga · 1241 days ago · 177 km deep · 94 km away
  10. 4.4Tonga · 1241 days ago · 183 km deep · 80 km away
  11. 4.694 km WNW of Hihifo, Tonga · 1241 days ago · 212 km deep · 89 km away
  12. 4.472 km WNW of Hihifo, Tonga · 1241 days ago · 185 km deep · 84 km away
  13. 4.3106 km WNW of Hihifo, Tonga · 1241 days ago · 227 km deep · 99 km away
  14. 4.798 km WNW of Hihifo, Tonga · 1241 days ago · 223 km deep · 93 km away
  15. 5.074 km WNW of Hihifo, Tonga · 1241 days ago · 199 km deep · 89 km away
  16. 4.780 km WNW of Hihifo, Tonga · 1241 days ago · 166 km deep · 88 km away
  17. 4.848 km WNW of Hihifo, Tonga · 1241 days ago · 175 km deep · 75 km away
  18. 7.682 km WNW of Hihifo, Tonga · 1241 days ago · 210 km deep · 86 km away · felt by 26 · tsunami flag

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000k6tk. Read Fri, Oct 2, 2026, 11:45 AM UTC.