M4.7 earthquake 40 km SE of ‘Ohonua, Tonga
A magnitude 4.7 earthquake struck 40 km SE of ‘Ohonua, Tonga on Thu, Aug 6, 2015, 5:21 AM GMT+13 (16:21 UTC), 11 km (7 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
- 2015-08-05 16:21:24 UTC
- Depth
- 11.2 km (7.0 mi), shallow
- Epicenter
- 21.587° S, 174.671° 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 13.1 km horizontally, 5.4 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- From location
- Station coverage gap
- 89°
- Stations used
- 17
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 4 in the 30 days before it.
After
- 4.4126 km SSE of ‘Ohonua, Tonga · 4072 days ago · 10 km deep · 94 km away
- 4.231 km SW of ‘Ohonua, Tonga · 4021 days ago · 192 km deep · 48 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000340e. Read Mon, Oct 5, 2026, 8:10 AM UTC.