M4.3 earthquake 289 km WNW of Neiafu, Tonga
A magnitude 4.3 earthquake struck 289 km WNW of Neiafu, Tonga on Tue, Dec 12, 2017, 7:35 AM GMT-12 (19:35 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.4 Fiji region. 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), light
- Local time
- UTC
- 2017-12-12 19:35:16 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 17.665° S, 176.522° 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 14.9 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- Operator assigned
- Station coverage gap
- 144°
- Stations used
- 14
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
- 4.0Fiji region · 3194 days ago · 366 km deep · 59 km away
- 4.3Fiji region · 3177 days ago · 380 km deep · 56 km away
- 4.4Fiji region · 3158 days ago · 431 km deep · 82 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000bt5a. Read Wed, Sep 30, 2026, 11:55 PM UTC.