M4.2 earthquake 147 km WNW of Hihifo, Tonga
A magnitude 4.2 earthquake struck 147 km WNW of Hihifo, Tonga on Tue, Oct 3, 2017, 1:44 PM GMT+14 (23:44 UTC), 264 km (164 mi) below the surface.
A larger quake followed: M6.0 191 km NW of Hihifo, 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
- 2017-10-02 23:44:05 UTC
- Depth
- 263.6 km (163.8 mi), intermediate-depth
- Epicenter
- 15.446° S, 175.072° 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 12.2 km horizontally, 4.7 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- From location
- Station coverage gap
- 111°
- Stations used
- 29
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.489 km WNW of Hihifo, Tonga · 3265 days ago · 231 km deep · 60 km away
- 4.683 km NW of Hihifo, Tonga · 3249 days ago · 156 km deep · 91 km away
- 4.1183 km W of Hihifo, Tonga · 3248 days ago · 449 km deep · 64 km away
- 6.0191 km NW of Hihifo, Tonga · 3238 days ago · 9 km deep · 80 km away · felt by 2
- 4.595 km NNW of Hihifo, Tonga · 3230 days ago · 200 km deep · 98 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000b3l0. Read Fri, Oct 2, 2026, 11:32 AM UTC.