M4.8 earthquake 47 km SE of Neiafu, Tonga
A magnitude 4.8 earthquake struck 47 km SE of Neiafu, Tonga on Mon, Jun 28, 2021, 12:45 PM GMT+13 (23:45 UTC), 16 km (10 mi) below the surface.
A larger quake followed: M5.2 43 km N 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
- 4.8 (mb), light
- Local time
- UTC
- 2021-06-27 23:45:43 UTC
- Depth
- 15.9 km (9.9 mi), shallow
- Epicenter
- 18.961° S, 173.670° 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 11.8 km horizontally, 5.9 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- From location
- Station coverage gap
- 128°
- Stations used
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 6 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.564 km SW of Neiafu, Tonga · 1907 days ago · 10 km deep · 83 km away
- 5.243 km N of Neiafu, Tonga · 1904 days ago · 10 km deep · 87 km away · felt by 5
- 4.7Tonga · 1904 days ago · 10 km deep · 46 km away · felt by 1
- 4.352 km N of Pangai, Tonga · 1894 days ago · 50 km deep · 87 km away
- 4.766 km ENE of Pangai, Tonga · 1876 days ago · 10 km deep · 79 km away
- 4.5127 km E of Neiafu, Tonga · 1868 days ago · 10 km deep · 99 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000ei6p. Read Wed, Sep 30, 2026, 9:38 AM UTC.