Tonga earthquakes

M5.1 earthquake 181 km NNW of Hihifo, Tonga

A magnitude 5.1 earthquake struck 181 km NNW of Hihifo, Tonga on Tue, Jul 6, 1976, 12:10 AM GMT-11 (11:10 UTC), 46 km (29 mi) below the surface.

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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
5.1 (mb, body-wave), moderate
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1976-07-06 11:10:12 UTC
Depth
46.0 km (28.6 mi), shallow
Epicenter
14.462° S, 174.492° W
Region
Tonga
Tsunami flag
No
Status
Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.ScaleComputed byNotes
5.1mb, body-waveUSGS National Earthquake Information CenterPreferred · Reviewed
5.39Mw, momentISCGEMSUPFinal · ±0.2

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used
30

Nearest places

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

Nearby

Within 100 km, magnitude 2.1 and up: 1 in the 60 days after this one and 0 in the 30 days before it.

After

Earthquakes todayTonga earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000h74 (also filed as iscgemsup710793). Read Sat, Oct 3, 2026, 4:19 AM UTC.