M4.3 earthquake 100 km NNW of Hihifo, Tonga
A magnitude 4.3 earthquake struck 100 km NNW of Hihifo, Tonga on Mon, Sep 17, 2018, 2:25 AM GMT+13 (13:25 UTC), 153 km (95 mi) below the surface.
A larger quake followed: M5.0 92 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
- 2018-09-16 13:25:21 UTC
- Depth
- 153.0 km (95.1 mi), intermediate-depth
- Epicenter
- 15.141° S, 174.202° 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 16.5 km horizontally, 12.6 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- From location
- Station coverage gap
- 111°
- Stations used
- 11
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 5 in the 30 days before it.
After
- 4.5115 km WNW of Hihifo, Tonga · 2897 days ago · 262 km deep · 81 km away
- 4.7100 km NNE of Hihifo, Tonga · 2892 days ago · 19 km deep · 83 km away
- 5.092 km NE of Hihifo, Tonga · 2885 days ago · 10 km deep · 98 km away
- 4.539 km NNE of Hihifo, Tonga · 2882 days ago · 51 km deep · 81 km away
Before
- 4.767 km N of Hihifo, Tonga · 2946 days ago · 82 km deep · 47 km away
- 4.1101 km WNW of Hihifo, Tonga · 2954 days ago · 279 km deep · 76 km away
- 4.694 km NW of Hihifo, Tonga · 2955 days ago · 225 km deep · 46 km away
- 4.6102 km NNE of Hihifo, Tonga · 2964 days ago · 19 km deep · 80 km away
- 4.6134 km NNE of Hihifo, Tonga · 2965 days ago · 10 km deep · 94 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000hic3. Read Fri, Oct 2, 2026, 6:28 PM UTC.