M4.4 earthquake 33 km SSE of Pangai, Tonga
A magnitude 4.4 earthquake struck 33 km SSE of Pangai, Tonga on Sun, Sep 26, 2021, 3:30 AM GMT+13 (14:30 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.8 87 km E of Pangai, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mb), light
- Local time
- UTC
- 2021-09-25 14:30:58 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 20.096° S, 174.226° 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 9.7 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- Operator assigned
- Station coverage gap
- 159°
- Stations used
- 16
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.761 km SSW of Pangai, Tonga · 1831 days ago · 35 km deep · 41 km away
- 4.586 km SE of Pangai, Tonga · 1811 days ago · 10 km deep · 60 km away
- 4.887 km E of Pangai, Tonga · 1785 days ago · 10 km deep · 82 km away · felt by 1
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000feda. Read Wed, Sep 30, 2026, 1:54 PM UTC.