M4.3 earthquake 204 km SW of Vaini, Tonga
A magnitude 4.3 earthquake struck 204 km SW of Vaini, Tonga on Tue, Aug 9, 2016, 3:09 AM GMT+13 (14:09 UTC), 163 km (101 mi) below the surface.
A larger quake followed: M4.8 180 km SW 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
- 2016-08-08 14:09:37 UTC
- Depth
- 162.6 km (101.0 mi), intermediate-depth
- Epicenter
- 22.429° S, 176.646° 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 13.3 km horizontally, 7.9 km in depth
- Magnitude uncertainty
- ±0.12
- Depth from
- From location
- Station coverage gap
- 91°
- Stations used
- 26
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 0 in the 30 days before it.
After
- 4.8180 km SW of Vaini, Tonga · 3690 days ago · 62 km deep · 37 km away
- 4.2221 km SW of Vaini, Tonga · 3683 days ago · 153 km deep · 42 km away
- 4.4283 km SW of Vaini, Tonga · 3681 days ago · 144 km deep · 94 km away
- 4.4171 km WSW of Haveluloto, Tonga · 3667 days ago · 206 km deep · 80 km away
- 4.4255 km SW of ‘Ohonua, Tonga · 3662 days ago · 10 km deep · 97 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10006cx4. Read Sat, Oct 3, 2026, 6:09 PM UTC.