M4.3 earthquake 52 km N of Pangai, Tonga
A magnitude 4.3 earthquake struck 52 km N of Pangai, Tonga on Sat, Jul 24, 2021, 11:37 AM GMT+13 (22:37 UTC), 50 km (31 mi) below the surface.
A larger quake followed: M5.4 16 km WNW of Neiafu, 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
- 2021-07-23 22:37:23 UTC
- Depth
- 49.9 km (31.0 mi), shallow
- Epicenter
- 19.340° S, 174.395° 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 12.6 km horizontally, 14.0 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 104°
- Stations used
- 20
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 3 in the 30 days before it.
After
- 4.766 km ENE of Pangai, Tonga · 1876 days ago · 10 km deep · 78 km away
- 5.416 km WNW of Neiafu, Tonga · 1856 days ago · 29 km deep · 85 km away · felt by 2
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000ezva. Read Thu, Oct 1, 2026, 3:23 AM UTC.