M4.3 earthquake 266 km SW of Vaini, Tonga
A magnitude 4.3 earthquake struck 266 km SW of Vaini, Tonga on Sun, Mar 7, 2021, 8:16 PM GMT+13 (07:16 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.9 232 km SSW of Vaini, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-03-07 07:16:10 UTC
- Depth
- 9.6 km (5.9 mi), shallow
- Epicenter
- 22.930° S, 176.958° 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.
- Location uncertainty
- About 10.8 km horizontally, 5.4 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 140°
- Stations used
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.4282 km SW of ‘Ohonua, Tonga · 2028 days ago · 91 km deep · 65 km away
- 4.3south of the Fiji Islands · 2021 days ago · 163 km deep · 88 km away
- 4.9232 km SSW of Vaini, Tonga · 1995 days ago · 98 km deep · 65 km away
- 4.5246 km SSW of Vaini, Tonga · 1979 days ago · 105 km deep · 51 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000djtj. Read Sun, Oct 4, 2026, 9:12 AM UTC.