M4.4 earthquake 280 km SW of Haveluloto, Tonga
A magnitude 4.4 earthquake struck 280 km SW of Haveluloto, Tonga on Tue, Jul 20, 2021, 8:51 AM GMT+13 (19:51 UTC), 220 km (137 mi) below the surface.
A larger quake followed: M5.8 280 km SW of Vaini, 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
- 2021-07-19 19:51:27 UTC
- Depth
- 220.2 km (136.8 mi), intermediate-depth
- Epicenter
- 22.729° S, 177.333° 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 13.3 km horizontally, 6.6 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 131°
- Stations used
- 42
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.1south of the Fiji Islands · 1877 days ago · 181 km deep · 97 km away
- 4.3223 km SW of Vaini, Tonga · 1873 days ago · 174 km deep · 60 km away
- 5.8280 km SW of Vaini, Tonga · 1870 days ago · 157 km deep · 46 km away · felt by 2
- 4.7south of the Fiji Islands · 1868 days ago · 160 km deep · 73 km away
- 4.6south of the Fiji Islands · 1843 days ago · 349 km deep · 43 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000enif. Read Wed, Sep 30, 2026, 5:41 PM UTC.