M4.6 earthquake 68 km SE of Hihifo, Tonga
A magnitude 4.6 earthquake struck 68 km SE of Hihifo, Tonga on Wed, Dec 4, 2019, 2:33 PM GMT+14 (00:33 UTC), 43 km (26 mi) below the surface.
A larger quake followed: M4.7 28 km NW 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
- 4.6 (mb), light
- Local time
- UTC
- 2019-12-04 00:33:57 UTC
- Depth
- 42.6 km (26.5 mi), shallow
- Epicenter
- 16.466° S, 173.438° 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 11.7 km horizontally, 3.4 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 71°
- Stations used
- 35
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 2 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.6141 km SE of Hihifo, Tonga · 2461 days ago · 10 km deep · 78 km away
- 4.728 km NW of Hihifo, Tonga · 2459 days ago · 116 km deep · 96 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us60006ltz. Read Wed, Sep 30, 2026, 4:21 PM UTC.