M4.3 earthquake Tonga
A magnitude 4.3 earthquake struck in Tonga on Mon, Jan 22, 2018, 2:23 PM GMT+14 (00:23 UTC), 117 km (73 mi) below the surface.
A larger quake followed: M4.9 74 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
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-01-22 00:23:45 UTC
- Depth
- 117.2 km (72.8 mi), intermediate-depth
- Epicenter
- 15.877° 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 8.5 km horizontally, 5.5 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 103°
- Stations used
- 59
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 6 in the 30 days before it.
After
- 4.4122 km WNW of Hihifo, Tonga · 3168 days ago · 240 km deep · 81 km away
- 4.974 km NNE of Hihifo, Tonga · 3149 days ago · 35 km deep · 100 km away
- 4.399 km WNW of Hihifo, Tonga · 3143 days ago · 268 km deep · 56 km away
- 4.7139 km WNW of Hihifo, Tonga · 3141 days ago · 254 km deep · 95 km away
- 4.5132 km NW of Hihifo, Tonga · 3139 days ago · 251 km deep · 95 km away
Before
- 4.2119 km W of Hihifo, Tonga · 3180 days ago · 279 km deep · 80 km away
- 4.541 km NE of Hihifo, Tonga · 3183 days ago · 35 km deep · 73 km away
- 4.973 km SW of Hihifo, Tonga · 3185 days ago · 147 km deep · 62 km away
- 4.2140 km WNW of Hihifo, Tonga · 3195 days ago · 250 km deep · 98 km away
- 4.222 km NW of Hihifo, Tonga · 3197 days ago · 129 km deep · 30 km away
- 4.443 km NW of Hihifo, Tonga · 3203 days ago · 118 km deep · 28 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000cea2. Read Fri, Oct 2, 2026, 7:44 AM UTC.