M4.4 earthquake 190 km NE of Neiafu, Tonga
A magnitude 4.4 earthquake struck 190 km NE of Neiafu, Tonga on Thu, Aug 31, 2017, 1:11 AM GMT-12 (13:11 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.0 199 km E 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
- 4.4 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-08-31 13:11:55 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 17.577° S, 172.575° 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 6.5 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- Operator assigned
- Station coverage gap
- 113°
- Stations used
- 14
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 7 in the 30 days before it.
After
- 4.5213 km NE of Neiafu, Tonga · 3321 days ago · 10 km deep · 23 km away
- 4.7155 km ESE of Hihifo, Tonga · 3312 days ago · 10 km deep · 96 km away
- 5.0199 km E of Neiafu, Tonga · 3280 days ago · 10 km deep · 98 km away
Before
- 4.9188 km NE of Neiafu, Tonga · 3323 days ago · 10 km deep · 28 km away
- 4.6157 km ENE of Neiafu, Tonga · 3325 days ago · 10 km deep · 50 km away
- 4.5237 km SE of Hihifo, Tonga · 3326 days ago · 10 km deep · 56 km away
- 4.7229 km NE of Neiafu, Tonga · 3327 days ago · 10 km deep · 42 km away
- 4.9110 km ENE of Neiafu, Tonga · 3331 days ago · 10 km deep · 98 km away
- 5.0197 km NE of Neiafu, Tonga · 3349 days ago · 10 km deep · 9 km away
- 5.4156 km NE of Neiafu, Tonga · 3349 days ago · 10 km deep · 34 km away · felt by 1
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000ark0. Read Sun, Oct 4, 2026, 3:01 PM UTC.