M4.6 earthquake 241 km SSW of ‘Ohonua, Tonga
A magnitude 4.6 earthquake struck 241 km SSW of ‘Ohonua, Tonga on Sun, Feb 7, 2021, 9:22 PM GMT+13 (08:22 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.0 south of 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, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-02-07 08:22:14 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 23.453° S, 175.507° 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 6.9 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- Operator assigned
- Station coverage gap
- 96°
- Stations used
- 22
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 3 in the 60 days after this one and 5 in the 30 days before it.
After
- 5.0south of Tonga · 2042 days ago · 10 km deep · 99 km away
- 4.9Tonga region · 2016 days ago · 10 km deep · 84 km away
- 4.6220 km S of ‘Ohonua, Tonga · 2015 days ago · 10 km deep · 82 km away
Before
- 5.2226 km SSW of ‘Ohonua, Tonga · 2066 days ago · 10 km deep · 21 km away
- 4.8250 km SSW of ‘Ohonua, Tonga · 2066 days ago · 10 km deep · 11 km away
- 4.5285 km S of ‘Ohonua, Tonga · 2081 days ago · 10 km deep · 55 km away
- 4.7241 km S of ‘Ohonua, Tonga · 2084 days ago · 10 km deep · 19 km away
- 4.5153 km SSW of ‘Ohonua, Tonga · 2088 days ago · 35 km deep · 89 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000dh20. Read Sun, Oct 4, 2026, 9:45 AM UTC.