M4.6 earthquake 96 km WSW of Neiafu, Tonga
A magnitude 4.6 earthquake struck 96 km WSW of Neiafu, Tonga on Wed, Aug 16, 2017, 7:45 PM GMT+13 (06:45 UTC), 66 km (41 mi) below the surface.
A larger quake followed: M6.1 156 km NW of Pangai, 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
- 2017-08-16 06:45:42 UTC
- Depth
- 65.6 km (40.7 mi), shallow
- Epicenter
- 18.873° S, 174.869° 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 11.5 km horizontally, 11.8 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- From location
- Station coverage gap
- 127°
- Stations used
- 20
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 8 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.490 km NW of Neiafu, Tonga · 3327 days ago · 77 km deep · 99 km away
- 4.584 km NNW of Pangai, Tonga · 3315 days ago · 100 km deep · 34 km away
- 4.9108 km WSW of Neiafu, Tonga · 3301 days ago · 129 km deep · 15 km away
- 5.0152 km WNW of Neiafu, Tonga · 3298 days ago · 213 km deep · 81 km away
- 4.638 km NW of Neiafu, Tonga · 3292 days ago · 131 km deep · 91 km away
- 4.7120 km W of Neiafu, Tonga · 3282 days ago · 10 km deep · 30 km away
- 4.6170 km WNW of Pangai, Tonga · 3281 days ago · 188 km deep · 92 km away
- 6.1156 km NW of Pangai, Tonga · 3280 days ago · 10 km deep · 74 km away · felt by 1
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000aakf. Read Thu, Oct 1, 2026, 10:16 PM UTC.