M4.8 earthquake 275 km S of ‘Ohonua, Tonga
A magnitude 4.8 earthquake struck 275 km S of ‘Ohonua, Tonga on Thu, Dec 29, 1977, 12:19 AM GMT+13 (11:19 UTC), 50 km (31 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb), light
- Local time
- UTC
- 1977-12-28 11:19:14 UTC
- Depth
- 50.0 km (31.1 mi), shallow
- Epicenter
- 23.776° S, 175.441° 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
- 25
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 0 in the 60 days after this one and 9 in the 30 days before it.
Before
- 5.1279 km SSW of ‘Ohonua, Tonga · 17811 days ago · 115 km deep · 39 km away
- 4.9231 km S of ‘Ohonua, Tonga · 17813 days ago · 33 km deep · 44 km away
- 5.1south of Tonga · 17819 days ago · 33 km deep · 50 km away
- 5.1263 km SSW of ‘Ohonua, Tonga · 17819 days ago · 33 km deep · 60 km away
- 6.1south of Tonga · 17820 days ago · 33 km deep · 45 km away
- 5.2south of Tonga · 17821 days ago · 33 km deep · 44 km away
- 5.9Tonga region · 17823 days ago · 33 km deep · 54 km away
- 4.8south of Tonga · 17823 days ago · 33 km deep · 36 km away
- 6.2south of the Fiji Islands · 17824 days ago · 56 km deep · 66 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000s91. Read Tue, Sep 22, 2026, 11:13 AM UTC.