M4.6 earthquake 79 km NE of Hihifo, Tonga
A magnitude 4.6 earthquake struck 79 km NE of Hihifo, Tonga on Wed, Aug 16, 2017, 12:05 AM GMT+13 (11:05 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.1 61 km NNE of Hihifo, 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
- 2017-08-15 11:05:25 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 15.455° S, 173.261° 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 12.0 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- Operator assigned
- Station coverage gap
- 83°
- Stations used
- 48
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 9 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.5114 km NE of Hihifo, Tonga · 3331 days ago · 10 km deep · 36 km away
- 4.536 km NNW of Hihifo, Tonga · 3327 days ago · 112 km deep · 81 km away
- 4.5122 km E of Hihifo, Tonga · 3322 days ago · 10 km deep · 74 km away
- 5.161 km NNE of Hihifo, Tonga · 3313 days ago · 72 km deep · 44 km away · felt by 1
- 5.0157 km SSW of Lotofag?, Samoa · 3311 days ago · 10 km deep · 89 km away
- 4.7132 km ENE of Hihifo, Tonga · 3305 days ago · 10 km deep · 57 km away
- 4.6115 km NNE of Hihifo, Tonga · 3294 days ago · 11 km deep · 55 km away
- 4.465 km N of Hihifo, Tonga · 3284 days ago · 10 km deep · 56 km away
- 4.562 km NNW of Hihifo, Tonga · 3279 days ago · 10 km deep · 76 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000a9fg. Read Fri, Oct 2, 2026, 7:14 PM UTC.