M5.1 earthquake 121 km NE of Hihifo, Tonga
A magnitude 5.1 earthquake struck 121 km NE of Hihifo, Tonga on Sun, Dec 5, 2021, 10:24 PM GMT+13 (09:24 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
- 5.1 (mb), moderate
- Local time
- UTC
- 2021-12-05 09:24:25 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 15.084° S, 173.111° W
- Region
- Tonga
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 8.1 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.08
- Depth from
- Operator assigned
- Station coverage gap
- 64°
- Stations used
- 61
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.1 and up: 4 in the 60 days after this one and 8 in the 30 days before it.
After
- 4.4113 km ENE of Hihifo, Tonga · 1760 days ago · 10 km deep · 47 km away
- 4.4107 km N of Hihifo, Tonga · 1733 days ago · 10 km deep · 71 km away
- 5.079 km ENE of Hihifo, Tonga · 1723 days ago · 35 km deep · 67 km away
- 4.575 km N of Hihifo, Tonga · 1708 days ago · 35 km deep · 78 km away
Before
- 4.5102 km NNE of Hihifo, Tonga · 1764 days ago · 10 km deep · 35 km away
- 5.2114 km NNE of Hihifo, Tonga · 1769 days ago · 10 km deep · 20 km away · felt by 2
- 5.4130 km NE of Hihifo, Tonga · 1769 days ago · 10 km deep · 9 km away · felt by 4
- 4.858 km N of Hihifo, Tonga · 1772 days ago · 10 km deep · 76 km away
- 4.385 km NNE of Hihifo, Tonga · 1774 days ago · 35 km deep · 40 km away
- 4.3153 km ENE of Hihifo, Tonga · 1775 days ago · 10 km deep · 93 km away
- 4.2115 km NNE of Hihifo, Tonga · 1781 days ago · 10 km deep · 45 km away
- 4.875 km E of Hihifo, Tonga · 1782 days ago · 10 km deep · 94 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000g98x (also filed as iscgem621612603). Read Wed, Sep 30, 2026, 8:12 AM UTC.