Tonga earthquakes

M4.8 earthquake 293 km SSW of ‘Ohonua, Tonga

A magnitude 4.8 earthquake struck 293 km SSW of ‘Ohonua, Tonga on Thu, Aug 3, 2023, 10:29 AM GMT+13 (21:29 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M5.5 south of the Fiji Islands. This one was a foreshock.

Nuku‘alofa forecastMore in Tonga

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
2023-08-02 21:29:59 UTC
Depth
11.3 km (7.0 mi), shallow
Epicenter
23.851° S, 175.865° 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 8.0 km horizontally, 3.0 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
121°
Stations used
67

Nearest places

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

Nearby

Within 100 km, magnitude 1.8 and up: 13 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 4.4269 km SSW of ‘Ohonua, Tonga · 1158 days ago · 30 km deep · 39 km away
  2. 5.0south of the Fiji Islands · 1151 days ago · 22 km deep · 70 km away
  3. 5.5south of the Fiji Islands · 1144 days ago · 29 km deep · 84 km away
  4. 4.9south of Tonga · 1144 days ago · 30 km deep · 64 km away
  5. 5.1268 km SSW of ‘Ohonua, Tonga · 1143 days ago · 20 km deep · 34 km away
  6. 4.4south of the Fiji Islands · 1143 days ago · 10 km deep · 66 km away
  7. 4.6220 km SSW of ‘Ohonua, Tonga · 1138 days ago · 35 km deep · 85 km away
  8. 4.7south of Tonga · 1136 days ago · 10 km deep · 73 km away
  9. 4.3south of Tonga · 1131 days ago · 10 km deep · 92 km away
  10. 4.6south of the Fiji Islands · 1120 days ago · 12 km deep · 71 km away
  11. 5.0south of Tonga · 1114 days ago · 35 km deep · 46 km away
  12. 4.6south of Tonga · 1113 days ago · 35 km deep · 39 km away
  13. 4.5south of the Fiji Islands · 1102 days ago · 99 km deep · 58 km away

Before

  1. 4.6south of Tonga · 1163 days ago · 10 km deep · 69 km away
  2. 4.5south of Tonga · 1165 days ago · 10 km deep · 78 km away
  3. 4.5275 km S of ‘Ohonua, Tonga · 1168 days ago · 10 km deep · 61 km away
  4. 4.4299 km SSW of Houma, Tonga · 1168 days ago · 10 km deep · 89 km away
  5. 4.9south of Tonga · 1170 days ago · 10 km deep · 79 km away
  6. 4.8south of Tonga · 1170 days ago · 10 km deep · 74 km away
  7. 4.9south of Tonga · 1184 days ago · 31 km deep · 41 km away
  8. 5.1south of Tonga · 1185 days ago · 23 km deep · 81 km away
  9. 4.4208 km S of ‘Ohonua, Tonga · 1185 days ago · 10 km deep · 91 km away
  10. 4.5278 km SSW of ‘Ohonua, Tonga · 1187 days ago · 22 km deep · 30 km away
  11. 4.5south of Tonga · 1188 days ago · 22 km deep · 30 km away
  12. 4.4south of Tonga · 1188 days ago · 10 km deep · 52 km away
  13. 4.9293 km SSW of ‘Ohonua, Tonga · 1188 days ago · 35 km deep · 18 km away
  14. 5.3273 km SSW of ‘Ohonua, Tonga · 1188 days ago · 10 km deep · 20 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000kzce. Read Sun, Oct 4, 2026, 1:56 AM UTC.