Tonga earthquakes

M5.5 earthquake 200 km SSW of ‘Ohonua, Tonga

A magnitude 5.5 earthquake struck 200 km SSW of ‘Ohonua, Tonga on Fri, Jun 24, 1977, 1:30 PM GMT+13 (00:30 UTC), 33 km (21 mi) below the surface.

Nuku‘alofa forecast More in Tonga

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The earthquake

Magnitude: 5.5 (mb), moderate
Local time: Fri, Jun 24, 1977, 1:30 PM GMT+13
UTC: 1977-06-24 00:30:20 UTC
Depth: 33.0 km (20.5 mi), shallow
Epicenter: 22.892° S, 175.944° 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.

Depth from: OPERATOR_ASSIGNED
Stations used: 125

Nearest places

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

Nuku‘alofa, TongaPopulation 22,400. Forecast210 kmSSW

Nearby

Within 100 km, magnitude 2.5 and up: 20 in the 60 days after this one and 5 in the 30 days before it.

After

Before

Earthquakes today Tonga earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0000pen (also filed as gcmtb062477a, gcmt19770624003020, iscgem697635). Read Tue, Sep 22, 2026, 11:13 AM UTC.