M4.7 earthquake 49 km WSW of Pangai, Tonga
A magnitude 4.7 earthquake struck 49 km WSW of Pangai, Tonga on Thu, Aug 4, 2016, 4:39 AM GMT+13 (15:39 UTC), 69 km (43 mi) below the surface.
A larger quake followed: M4.9 55 km NNW of Nuku‘alofa, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2016-08-03 15:39:54 UTC
- Depth
- 68.5 km (42.6 mi), shallow
- Epicenter
- 19.967° S, 174.799° 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 8.8 km horizontally, 7.0 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 61°
- Stations used
- 88
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 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 us100069sf. Read Sun, Oct 4, 2026, 6:52 PM UTC.