Tonga earthquakes

M5.0 earthquake 24 km NW of Hihifo, Tonga

A magnitude 5.0 earthquake struck 24 km NW of Hihifo, Tonga on Mon, Jun 13, 1977, 3:00 PM GMT-11 (02:00 UTC), 47 km (29 mi) below the surface.

A larger quake followed: M5.1 80 km NW 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
5.0 (ms), moderate
Local time
UTC
1977-06-14 02:00:58 UTC
Depth
47.0 km (29.2 mi), shallow
Epicenter
15.777° S, 173.935° 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.

Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 2.0 and up: 4 in the 60 days after this one and 0 in the 30 days before it.

After

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000p9s. Read Tue, Sep 22, 2026, 11:00 AM UTC.