M4.3 earthquake 111 km SSE of ‘Ohonua, Tonga
A magnitude 4.3 earthquake struck 111 km SSE of ‘Ohonua, Tonga on Mon, Feb 22, 2021, 8:40 PM GMT+13 (07:40 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.6 108 km SSW of ‘Ohonua, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-02-22 07:40:59 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 22.253° S, 174.511° 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 11.0 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.16
- Depth from
- Operator assigned
- Station coverage gap
- 191°, poorly surrounded by stations
- Stations used
- 14
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.6108 km SSW of ‘Ohonua, Tonga · 2041 days ago · 35 km deep · 67 km away
- 4.5114 km SE of ‘Ohonua, Tonga · 2018 days ago · 10 km deep · 23 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000ddvs. Read Sun, Oct 4, 2026, 9:45 AM UTC.