M4.8 earthquake 90 km NNW of Neiafu, Tonga
A magnitude 4.8 earthquake struck 90 km NNW of Neiafu, Tonga on Mon, Aug 8, 2016, 3:23 PM GMT+13 (02:23 UTC), 22 km (13 mi) below the surface.
A larger quake followed: M6.4 118 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
- 4.8 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2016-08-08 02:23:27 UTC
- Depth
- 21.6 km (13.4 mi), shallow
- Epicenter
- 17.903° S, 174.338° 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 10.1 km horizontally, 5.4 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 59°
- Stations used
- 60
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 5 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.4140 km S of Hihifo, Tonga · 3707 days ago · 130 km deep · 88 km away
- 4.388 km W of Neiafu, Tonga · 3689 days ago · 71 km deep · 99 km away
- 4.658 km WNW of Neiafu, Tonga · 3683 days ago · 77 km deep · 69 km away
- 6.4118 km WNW of Neiafu, Tonga · 3661 days ago · 202 km deep · 75 km away · felt by 5
- 4.580 km NNW of Neiafu, Tonga · 3650 days ago · 134 km deep · 11 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10006c02. Read Sun, Oct 4, 2026, 4:48 AM UTC.