M4.2 earthquake 221 km SW of Vaini, Tonga
A magnitude 4.2 earthquake struck 221 km SW of Vaini, Tonga on Fri, Sep 2, 2016, 11:12 PM GMT+13 (10:12 UTC), 153 km (95 mi) below the surface.
A larger quake followed: M4.5 205 km SSW of ‘Ohonua, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2016-09-02 10:12:24 UTC
- Depth
- 152.9 km (95.0 mi), intermediate-depth
- Epicenter
- 22.776° S, 176.490° 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 13.0 km horizontally, 10.7 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- From location
- Station coverage gap
- 169°
- Stations used
- 15
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.4283 km SW of Vaini, Tonga · 3682 days ago · 144 km deep · 63 km away
- 4.4255 km SW of ‘Ohonua, Tonga · 3662 days ago · 10 km deep · 55 km away
- 4.5205 km SSW of ‘Ohonua, Tonga · 3625 days ago · 109 km deep · 71 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10006khz. Read Sun, Oct 4, 2026, 4:32 AM UTC.