M4.5 earthquake 252 km WSW of Hihifo, Tonga
A magnitude 4.5 earthquake struck 252 km WSW of Hihifo, Tonga on Tue, Dec 28, 2021, 1:41 AM GMT-12 (13:41 UTC), 10 km (6 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.5 (mb), light
- Local time
- UTC
- 2021-12-28 13:41:58 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 17.123° S, 175.830° 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, 1.9 km in depth
- Magnitude uncertainty
- ±0.19
- Depth from
- Operator assigned
- Station coverage gap
- 121°
- Stations used
- 15
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 1 in the 30 days before it.
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000g9yk. Read Wed, Sep 30, 2026, 5:35 PM UTC.