Tonga earthquakes

M3.9 earthquake 58 km ENE of Hihifo, Tonga

A magnitude 3.9 earthquake struck 58 km ENE of Hihifo, Tonga on Sat, Jul 21, 2007, 1:50 PM GMT-11 (00:50 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M5.2 89 km NNE 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
3.9 (mb, body-wave), minor
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2007-07-22 00:50:02 UTC
Depth
35.0 km (21.7 mi), shallow
Epicenter
15.740° S, 173.293° W
Region
Tonga
Tsunami flag
No
Status
Reviewed by a seismologist

What happened

The USGS’s account of the effects of this earthquake.

no people dead or missing; no people injured; no buildings damaged or destroyed

From the USGS event page for usp000fgu2. U.S. Geological Survey text and figures are in the public domain.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from
OPERATOR_ASSIGNED
Station coverage gap
184°, poorly surrounded by stations
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 4.7130 km E of Hihifo, Tonga · 7003 days ago · 35 km deep · 82 km away
  2. 4.5151 km E of Hihifo, Tonga · 6999 days ago · 10 km deep · 96 km away
  3. 5.289 km NNE of Hihifo, Tonga · 6996 days ago · 10 km deep · 72 km away · felt by 2
  4. 4.2109 km ESE of Hihifo, Tonga · 6987 days ago · 35 km deep · 81 km away
  5. 4.237 km NE of Hihifo, Tonga · 6971 days ago · 35 km deep · 31 km away
  6. 4.5156 km SSW of Lotofag?, Samoa · 6971 days ago · 10 km deep · 100 km away
  7. 3.9108 km ESE of Hihifo, Tonga · 6971 days ago · 45 km deep · 83 km away
  8. 4.4104 km N of Hihifo, Tonga · 6965 days ago · 10 km deep · 86 km away
  9. 4.665 km NE of Hihifo, Tonga · 6963 days ago · 35 km deep · 28 km away
  10. 4.5111 km NNE of Hihifo, Tonga · 6959 days ago · 10 km deep · 78 km away
  11. 5.282 km NNE of Hihifo, Tonga · 6958 days ago · 10 km deep · 49 km away

Before

  1. 4.482 km NE of Hihifo, Tonga · 7019 days ago · 10 km deep · 38 km away
  2. 4.097 km NNE of Hihifo, Tonga · 7020 days ago · 35 km deep · 76 km away
  3. 4.5102 km ENE of Hihifo, Tonga · 7027 days ago · 35 km deep · 44 km away
  4. 4.197 km NNE of Hihifo, Tonga · 7044 days ago · 1 km deep · 61 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000fgu2. Read Sun, Oct 4, 2026, 8:41 AM UTC.