M4.2 earthquake 173 km NW of Neiafu, Tonga
A magnitude 4.2 earthquake struck 173 km NW of Neiafu, Tonga on Sun, Feb 12, 2017, 1:50 PM GMT+13 (00:50 UTC), 195 km (121 mi) below the surface.
A larger quake followed: M4.5 131 km NW 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
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-02-12 00:50:02 UTC
- Depth
- 195.1 km (121.2 mi), intermediate-depth
- Epicenter
- 17.578° S, 175.178° 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 12.6 km horizontally, 9.1 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- From location
- Station coverage gap
- 73°
- Stations used
- 21
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 1 in the 30 days before it.
After
- 4.5131 km NW of Neiafu, Tonga · 3504 days ago · 196 km deep · 47 km away
- 4.2180 km NW of Neiafu, Tonga · 3499 days ago · 289 km deep · 30 km away
- 4.580 km WNW of Neiafu, Tonga · 3499 days ago · 71 km deep · 96 km away
- 4.3149 km NW of Neiafu, Tonga · 3478 days ago · 219 km deep · 41 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us20008lhn. Read Sat, Oct 3, 2026, 1:06 PM UTC.