M4.7 earthquake Tonga
A magnitude 4.7 earthquake struck in Tonga on Sun, Jan 1, 2023, 7:05 AM GMT+13 (18:05 UTC), 63 km (39 mi) below the surface.
A larger quake followed: M5.1 Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2022-12-31 18:05:56 UTC
- Depth
- 62.9 km (39.1 mi), shallow
- Epicenter
- 16.327° S, 173.539° 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 7.2 km horizontally, 7.4 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- From location
- Station coverage gap
- 117°
- Stations used
- 19
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 6 in the 60 days after this one and 3 in the 30 days before it.
After
- 5.1Tonga · 1364 days ago · 152 km deep · 76 km away
- 4.559 km SW of Hihifo, Tonga · 1360 days ago · 131 km deep · 73 km away
- 5.077 km E of Hihifo, Tonga · 1340 days ago · 44 km deep · 71 km away
- 4.8Tonga · 1332 days ago · 82 km deep · 57 km away
- 4.579 km SSW of Hihifo, Tonga · 1326 days ago · 120 km deep · 59 km away
- 4.7114 km ESE of Hihifo, Tonga · 1314 days ago · 10 km deep · 84 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000j3w1. Read Fri, Oct 2, 2026, 7:29 AM UTC.