M4.2 earthquake 140 km WNW of Hihifo, Tonga
A magnitude 4.2 earthquake struck 140 km WNW of Hihifo, Tonga on Wed, Jan 3, 2018, 2:56 AM GMT+14 (12:56 UTC), 250 km (156 mi) below the surface.
A larger quake followed: M4.7 139 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
- 4.2 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2018-01-02 12:56:09 UTC
- Depth
- 250.4 km (155.6 mi), intermediate-depth
- Epicenter
- 15.425° S, 174.985° 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 17.4 km horizontally, 12.3 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- From location
- Station coverage gap
- 141°
- 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: 7 in the 60 days after this one and 0 in the 30 days before it.
After
- 4.2119 km W of Hihifo, Tonga · 3180 days ago · 279 km deep · 82 km away
- 4.3Tonga · 3175 days ago · 117 km deep · 98 km away
- 4.2186 km W of Hihifo, Tonga · 3173 days ago · 305 km deep · 74 km away
- 4.4122 km WNW of Hihifo, Tonga · 3168 days ago · 240 km deep · 18 km away
- 4.399 km WNW of Hihifo, Tonga · 3143 days ago · 268 km deep · 44 km away
- 4.7139 km WNW of Hihifo, Tonga · 3141 days ago · 254 km deep · 28 km away
- 4.5132 km NW of Hihifo, Tonga · 3139 days ago · 251 km deep · 34 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000ck9v. Read Fri, Oct 2, 2026, 7:45 AM UTC.