M4.7 earthquake 204 km SW of Hihifo, Tonga
A magnitude 4.7 earthquake struck 204 km SW of Hihifo, Tonga on Thu, Dec 10, 2020, 8:54 AM GMT-12 (20:54 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.9 148 km SSW 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
- 4.7 (mb), light
- Local time
- UTC
- 2020-12-10 20:54:42 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 17.153° S, 175.255° 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 12.0 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- Operator assigned
- Station coverage gap
- 197°, poorly surrounded by stations
- Stations used
- 33
Nearby
Within 100 km, magnitude 1.7 and up: 1 in the 60 days after this one and 4 in the 30 days before it.
After
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000crah. Read Wed, Sep 30, 2026, 4:24 PM UTC.