M4.6 earthquake 31 km NNE of Neiafu, Tonga
A magnitude 4.6 earthquake struck 31 km NNE of Neiafu, Tonga on Sun, Apr 17, 2016, 6:43 AM GMT+13 (17:43 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.7 117 km NNE 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
- 2016-04-16 17:43:57 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 18.406° S, 173.829° 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 13.2 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.19
- Depth from
- Operator assigned
- Station coverage gap
- 277°, poorly surrounded by stations
- Stations used
- 13
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 4 in the 30 days before it.
After
- 4.7117 km NNE of Neiafu, Tonga · 3802 days ago · 60 km deep · 89 km away
- 4.678 km ENE of Neiafu, Tonga · 3799 days ago · 10 km deep · 60 km away
- 4.666 km SSW of Neiafu, Tonga · 3786 days ago · 21 km deep · 98 km away
- 4.5114 km NE of Neiafu, Tonga · 3774 days ago · 35 km deep · 84 km away
- 4.364 km N of Neiafu, Tonga · 3767 days ago · 10 km deep · 45 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10005bfu. Read Sun, Oct 4, 2026, 11:04 PM UTC.