M5.0 earthquake 31 km SSW of Vaini, Tonga
A magnitude 5.0 earthquake struck 31 km SSW of Vaini, Tonga on Sun, Aug 11, 1974, 3:18 PM GMT+13 (02:18 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.0 (mb), moderate
- Local time
- UTC
- 1974-08-11 02:18:28 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 21.467° S, 175.254° 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
- 24
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.0 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.8112 km SSW of Vaini, Tonga · 19037 days ago · 170 km deep · 82 km away
- 4.849 km ESE of ‘Ohonua, Tonga · 19027 days ago · 33 km deep · 77 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00007j1. Read Mon, Sep 28, 2026, 1:42 AM UTC.