M4.7 earthquake 250 km WNW of Pangai, Tonga
A magnitude 4.7 earthquake struck 250 km WNW of Pangai, Tonga on Tue, Aug 23, 2016, 6:29 AM GMT+13 (17:29 UTC), 10 km (6 mi) below the surface.
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
- 2016-08-22 17:29:02 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 18.937° S, 176.548° W
- Region
- Tonga
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 4.7 | mb, body-wave | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.056 · 97 stations |
| 4.97 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
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, 1.9 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- Operator assigned
- Station coverage gap
- 102°
- Stations used
- 102
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.5Fiji region · 3678 days ago · 576 km deep · 96 km away
- 4.1208 km NW of Nuku‘alofa, Tonga · 3665 days ago · 231 km deep · 78 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10006ftx (also filed as iscgem609375512). Read Fri, Oct 2, 2026, 11:14 AM UTC.