M4.0 earthquake 39 km NW of Hihifo, Tonga
A magnitude 4.0 earthquake struck 39 km NW of Hihifo, Tonga on Sun, Oct 16, 2016, 7:03 AM GMT+14 (17:03 UTC), 136 km (85 mi) below the surface.
A larger quake followed: M6.1 127 km WNW 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
- 4.0 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2016-10-15 17:03:56 UTC
- Depth
- 136.1 km (84.6 mi), intermediate-depth
- Epicenter
- 15.738° S, 174.095° 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 12.9 km horizontally, 20.2 km in depth
- Magnitude uncertainty
- ±0.21
- Depth from
- From location
- Station coverage gap
- 94°
- Stations used
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.436 km NNW of Hihifo, Tonga · 3639 days ago · 102 km deep · 22 km away
- 5.8127 km WNW of Hihifo, Tonga · 3631 days ago · 10 km deep · 88 km away
- 6.1127 km WNW of Hihifo, Tonga · 3630 days ago · 10 km deep · 89 km away
- 4.282 km NNW of Hihifo, Tonga · 3629 days ago · 102 km deep · 48 km away
- 4.511 km NNW of Hihifo, Tonga · 3627 days ago · 80 km deep · 30 km away
- 4.457 km NE of Hihifo, Tonga · 3627 days ago · 57 km deep · 72 km away
- 4.5119 km WNW of Hihifo, Tonga · 3600 days ago · 56 km deep · 80 km away
- 4.534 km WSW of Hihifo, Tonga · 3597 days ago · 133 km deep · 34 km away
- 4.731 km SW of Hihifo, Tonga · 3586 days ago · 10 km deep · 51 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us20007fng. Read Sun, Oct 4, 2026, 9:01 AM UTC.