M5.1 earthquake 141 km SW of Vaini, Tonga
A magnitude 5.1 earthquake struck 141 km SW of Vaini, Tonga on Sat, Aug 6, 1977, 6:26 PM GMT+13 (05:26 UTC), 122 km (76 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.1 (mb), moderate
- Local time
- UTC
- 1977-08-06 05:26:56 UTC
- Depth
- 122.0 km (75.8 mi), intermediate-depth
- Epicenter
- 22.220° S, 175.983° 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
- 54
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 and up: 3 in the 60 days after this one and 6 in the 30 days before it.
After
- 4.5144 km SW of Vaini, Tonga · 17938 days ago · 170 km deep · 15 km away
- 4.9160 km SW of ‘Ohonua, Tonga · 17938 days ago · 33 km deep · 32 km away
- 4.3169 km SSW of ‘Ohonua, Tonga · 17906 days ago · 33 km deep · 93 km away
Before
- 4.8234 km SW of ‘Ohonua, Tonga · 17947 days ago · 115 km deep · 97 km away
- 4.5161 km SSW of ‘Ohonua, Tonga · 17950 days ago · 123 km deep · 81 km away
- 4.9137 km WSW of Haveluloto, Tonga · 17958 days ago · 294 km deep · 79 km away
- 4.9154 km SW of Haveluloto, Tonga · 17965 days ago · 54 km deep · 42 km away
- 5.5125 km S of ‘Ohonua, Tonga · 17972 days ago · 33 km deep · 95 km away
- 4.3199 km SW of Vaini, Tonga · 17973 days ago · 269 km deep · 72 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0000pzy. Read Tue, Sep 22, 2026, 7:42 AM UTC.