Tonga earthquakes

M4.5 earthquake 17 km S of Hihifo, Tonga

A magnitude 4.5 earthquake struck 17 km S of Hihifo, Tonga on Tue, Aug 23, 2022, 6:42 AM GMT+13 (17:42 UTC), 84 km (52 mi) below the surface.

A larger quake followed: M4.9 73 km W 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
4.5 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2022-08-22 17:42:54 UTC
Depth
84.2 km (52.3 mi), intermediate-depth
Epicenter
16.110° S, 173.824° 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 9.2 km horizontally, 6.6 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
70°
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: 10 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 4.262 km SE of Hihifo, Tonga · 1496 days ago · 53 km deep · 52 km away
  2. 4.247 km W of Hihifo, Tonga · 1488 days ago · 158 km deep · 51 km away
  3. 4.534 km WNW of Hihifo, Tonga · 1482 days ago · 109 km deep · 44 km away
  4. 4.682 km SE of Hihifo, Tonga · 1481 days ago · 10 km deep · 77 km away
  5. 4.5Tonga · 1467 days ago · 97 km deep · 60 km away
  6. 4.449 km SSE of Hihifo, Tonga · 1466 days ago · 68 km deep · 38 km away
  7. 4.973 km W of Hihifo, Tonga · 1456 days ago · 10 km deep · 72 km away
  8. 4.564 km SSE of Hihifo, Tonga · 1446 days ago · 66 km deep · 53 km away
  9. 4.5Tonga · 1443 days ago · 147 km deep · 83 km away
  10. 4.049 km NNE of Hihifo, Tonga · 1442 days ago · 63 km deep · 67 km away

Before

  1. 4.567 km WSW of Hihifo, Tonga · 1513 days ago · 170 km deep · 59 km away
  2. 4.418 km WNW of Hihifo, Tonga · 1515 days ago · 153 km deep · 28 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000i40f. Read Fri, Oct 2, 2026, 7:12 PM UTC.