M4.1 earthquake Tonga region
A magnitude 4.1 earthquake struck in the Tonga region on Mon, Dec 12, 2016, 8:09 PM GMT+14 (06:09 UTC), 171 km (106 mi) below the surface.
A larger quake followed: M5.2 55 km SSE 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
- 4.1 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2016-12-12 06:09:38 UTC
- Depth
- 171.0 km (106.3 mi), intermediate-depth
- Epicenter
- 22.019° S, 175.732° 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 21.9 km horizontally, 16.0 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- From location
- Station coverage gap
- 156°
- Stations used
- 16
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 2 in the 30 days before it.
After
- 5.255 km SSE of ‘Ohonua, Tonga · 3579 days ago · 10 km deep · 100 km away · felt by 1
- 4.6131 km SSW of ‘Ohonua, Tonga · 3576 days ago · 9 km deep · 56 km away
- 5.248 km S of ‘Ohonua, Tonga · 3576 days ago · 10 km deep · 90 km away
- 4.9151 km SW of Vaini, Tonga · 3573 days ago · 131 km deep · 45 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us200082uw. Read Fri, Oct 2, 2026, 4:02 PM UTC.