M4.1 earthquake Tonga
A magnitude 4.1 earthquake struck in Tonga on Mon, Dec 22, 2014, 8:19 AM GMT+13 (19:19 UTC), 258 km (160 mi) below the surface.
A larger quake followed: M5.2 86 km W of Neiafu, 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
- 2014-12-21 19:19:50 UTC
- Depth
- 257.6 km (160.1 mi), intermediate-depth
- Epicenter
- 18.254° S, 175.090° 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 13.9 km horizontally, 10.4 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- FROM_LOCATION
- Station coverage gap
- 123°
- 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: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.4113 km NW of Neiafu, Tonga · 4285 days ago · 81 km deep · 64 km away
- 4.4149 km NW of Pangai, Tonga · 4280 days ago · 205 km deep · 94 km away
- 4.2129 km NW of Neiafu, Tonga · 4274 days ago · 255 km deep · 67 km away
- 5.286 km W of Neiafu, Tonga · 4269 days ago · 83 km deep · 67 km away · felt by 1
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usc000tcv4. Read Mon, Oct 5, 2026, 6:38 AM UTC.