M4.2 earthquake Tonga
A magnitude 4.2 earthquake struck in Tonga on Wed, Jan 29, 2020, 9:31 PM GMT+14 (07:31 UTC), 262 km (163 mi) below the surface.
A larger quake followed: M4.6 57 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
- 4.2 (mb), light
- Local time
- UTC
- 2020-01-29 07:31:09 UTC
- Depth
- 262.3 km (163.0 mi), intermediate-depth
- Epicenter
- 15.149° S, 174.866° 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 15.8 km horizontally, 10.2 km in depth
- Magnitude uncertainty
- ±0.17
- Depth from
- From location
- Station coverage gap
- 88°
- Stations used
- 14
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.657 km NNW of Hihifo, Tonga · 2425 days ago · 49 km deep · 100 km away
- 4.683 km NNW of Hihifo, Tonga · 2418 days ago · 91 km deep · 95 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us70007kvw. Read Wed, Sep 30, 2026, 5:29 PM UTC.