Tonga earthquakes

M4.1 earthquake 100 km SSW of Hihifo, Tonga

A magnitude 4.1 earthquake struck 100 km SSW of Hihifo, Tonga on Fri, Aug 8, 2008, 7:01 PM GMT-12 (07:01 UTC), 147 km (92 mi) below the surface.

A larger quake followed: M5.2 16 km SSW of Hihifo, 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
4.1 (mb, body-wave), light
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
2008-08-09 07:01:05 UTC
Depth
147.4 km (91.6 mi), intermediate-depth
Epicenter
16.762° S, 174.228° 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 usp000ge8m. 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
CONSTRAINED_BY_DEPTH_PHASES
Station coverage gap
138°
Stations used
15

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 1 in the 30 days before it.

After

  1. 4.8114 km SW of Hihifo, Tonga · 6624 days ago · 149 km deep · 43 km away
  2. 4.858 km S of Hihifo, Tonga · 6617 days ago · 11 km deep · 56 km away
  3. 4.058 km S of Hihifo, Tonga · 6602 days ago · 51 km deep · 57 km away
  4. 4.1156 km NNW of Neiafu, Tonga · 6602 days ago · 226 km deep · 75 km away
  5. 4.7124 km N of Neiafu, Tonga · 6596 days ago · 35 km deep · 97 km away
  6. 5.216 km SSW of Hihifo, Tonga · 6588 days ago · 121 km deep · 85 km away
  7. 4.7159 km NNW of Neiafu, Tonga · 6586 days ago · 108 km deep · 73 km away
  8. 4.3138 km SSW of Hihifo, Tonga · 6586 days ago · 89 km deep · 39 km away
  9. 4.414 km SSE of Hihifo, Tonga · 6584 days ago · 107 km deep · 91 km away
  10. 4.0124 km NNW of Neiafu, Tonga · 6581 days ago · 114 km deep · 89 km away

Before

  1. 4.5144 km NNW of Neiafu, Tonga · 6649 days ago · 70 km deep · 71 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000ge8m. Read Mon, Oct 5, 2026, 8:06 AM UTC.