M4.6 earthquake 38 km NW of Neiafu, Tonga
A magnitude 4.6 earthquake struck 38 km NW of Neiafu, Tonga on Wed, Sep 27, 2017, 7:33 AM GMT+13 (18:33 UTC), 131 km (81 mi) below the surface.
A larger quake followed: M4.7 123 km WNW 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
- 4.6 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-09-26 18:33:43 UTC
- Depth
- 130.7 km (81.2 mi), intermediate-depth
- Epicenter
- 18.370° S, 174.192° 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 10.3 km horizontally, 11.1 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 106°
- Stations used
- 37
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.3127 km N of Neiafu, Tonga · 3281 days ago · 145 km deep · 94 km away
- 4.3132 km WNW of Neiafu, Tonga · 3267 days ago · 207 km deep · 100 km away
- 4.544 km NNE of Neiafu, Tonga · 3256 days ago · 47 km deep · 43 km away
- 4.7123 km WNW of Neiafu, Tonga · 3247 days ago · 199 km deep · 94 km away
- 4.1122 km NW of Neiafu, Tonga · 3242 days ago · 212 km deep · 87 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000av23. Read Thu, Oct 1, 2026, 4:50 PM UTC.