M4.3 earthquake 221 km WNW of Neiafu, Tonga
A magnitude 4.3 earthquake struck 221 km WNW of Neiafu, Tonga on Fri, Apr 28, 2017, 10:28 AM GMT+13 (21:28 UTC), 84 km (52 mi) below the surface.
A larger quake followed: M4.4 145 km NW 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
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-04-27 21:28:22 UTC
- Depth
- 83.6 km (51.9 mi), intermediate-depth
- Epicenter
- 17.775° S, 175.869° 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 8.6 km horizontally, 15.4 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- From location
- Station coverage gap
- 147°
- Stations used
- 15
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10008nub. Read Sun, Oct 4, 2026, 1:15 AM UTC.