M4.2 earthquake 116 km NW of Hihifo, Tonga
A magnitude 4.2 earthquake struck 116 km NW of Hihifo, Tonga on Wed, Sep 6, 2017, 9:40 AM GMT+13 (20:40 UTC), 256 km (159 mi) below the surface.
A larger quake followed: M4.8 107 km NNW 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
- 2017-09-05 20:40:49 UTC
- Depth
- 256.3 km (159.2 mi), intermediate-depth
- Epicenter
- 15.336° S, 174.681° 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 12.9 km horizontally, 15.0 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- From location
- Station coverage gap
- 144°
- Stations used
- 19
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 1 in the 30 days before it.
After
- 4.8107 km NNW of Hihifo, Tonga · 3307 days ago · 148 km deep · 57 km away
- 4.2147 km WNW of Hihifo, Tonga · 3287 days ago · 264 km deep · 44 km away
- 4.465 km N of Hihifo, Tonga · 3284 days ago · 10 km deep · 97 km away
- 4.562 km NNW of Hihifo, Tonga · 3279 days ago · 10 km deep · 77 km away
- 4.489 km WNW of Hihifo, Tonga · 3265 days ago · 231 km deep · 44 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000arpb. Read Sat, Oct 3, 2026, 1:07 AM UTC.