M4.3 earthquake 93 km N of Hihifo, Tonga
A magnitude 4.3 earthquake struck 93 km N of Hihifo, Tonga on Fri, Aug 10, 2018, 5:10 PM GMT+13 (04:10 UTC), 35 km (22 mi) below the surface.
A larger quake followed: M5.1 126 km NE 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
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-08-10 04:10:10 UTC
- Depth
- 35.0 km (21.7 mi), shallow
- Epicenter
- 15.127° S, 173.952° 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 7.1 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- Operator assigned
- Station coverage gap
- 103°
- Stations used
- 16
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
- 4.9108 km N of Hihifo, Tonga · 2972 days ago · 33 km deep · 36 km away · felt by 1
- 4.6134 km NNE of Hihifo, Tonga · 2966 days ago · 10 km deep · 69 km away
- 5.1126 km NE of Hihifo, Tonga · 2966 days ago · 10 km deep · 95 km away
- 4.6102 km NNE of Hihifo, Tonga · 2965 days ago · 19 km deep · 53 km away
- 4.694 km NW of Hihifo, Tonga · 2957 days ago · 225 km deep · 68 km away
- 4.1101 km WNW of Hihifo, Tonga · 2955 days ago · 279 km deep · 98 km away
- 4.767 km N of Hihifo, Tonga · 2948 days ago · 82 km deep · 28 km away
- 4.3100 km NNW of Hihifo, Tonga · 2940 days ago · 153 km deep · 27 km away
- 4.397 km NE of Hihifo, Tonga · 2939 days ago · 10 km deep · 77 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000gad0. Read Sun, Oct 4, 2026, 12:31 PM UTC.