M4.3 earthquake Tonga
A magnitude 4.3 earthquake struck in Tonga on Sat, Jun 12, 2021, 4:41 AM GMT-12 (16:41 UTC), 371 km (230 mi) below the surface.
A larger quake followed: M4.4 163 km WSW of Hihifo, 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), light
- Local time
- UTC
- 2021-06-12 16:41:34 UTC
- Depth
- 370.7 km (230.3 mi), deep
- Epicenter
- 16.229° S, 175.837° 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 12.8 km horizontally, 9.4 km in depth
- Magnitude uncertainty
- ±0.11
- Depth from
- From location
- Station coverage gap
- 112°
- Stations used
- 33
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.1226 km W of Hihifo, Tonga · 1913 days ago · 387 km deep · 16 km away
- 4.1177 km WSW of Hihifo, Tonga · 1910 days ago · 271 km deep · 67 km away
- 4.4163 km WSW of Hihifo, Tonga · 1905 days ago · 10 km deep · 62 km away
- 4.3150 km W of Hihifo, Tonga · 1904 days ago · 128 km deep · 71 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000ecgs. Read Wed, Sep 30, 2026, 5:36 AM UTC.