M4.6 earthquake 109 km WNW of Hihifo, Tonga
A magnitude 4.6 earthquake struck 109 km WNW of Hihifo, Tonga on Tue, Jul 18, 2017, 3:31 AM GMT+13 (14:31 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.8 107 km NNW 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
- 2017-07-17 14:31:18 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 15.600° S, 174.752° 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 21.4 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- Operator assigned
- Station coverage gap
- 163°
- Stations used
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.0115 km WSW of Hihifo, Tonga · 3345 days ago · 288 km deep · 69 km away
- 4.536 km NNW of Hihifo, Tonga · 3328 days ago · 112 km deep · 83 km away
- 4.2116 km NW of Hihifo, Tonga · 3314 days ago · 256 km deep · 30 km away
- 4.8107 km NNW of Hihifo, Tonga · 3307 days ago · 148 km deep · 81 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us20009z0m. Read Sat, Oct 3, 2026, 1:19 AM UTC.