M4.5 earthquake 282 km SW of Vaini, Tonga
A magnitude 4.5 earthquake struck 282 km SW of Vaini, Tonga on Thu, Jul 1, 2021, 3:37 PM GMT+13 (02:37 UTC), 184 km (115 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
- 4.5 (mb), light
- Local time
- UTC
- 2021-07-01 02:37:13 UTC
- Depth
- 184.4 km (114.6 mi), intermediate-depth
- Epicenter
- 23.011° S, 177.092° 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 22.2 km horizontally, 16.2 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 221°, poorly surrounded by stations
- Stations used
- 23
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
- 4.4280 km SW of Haveluloto, Tonga · 1899 days ago · 220 km deep · 40 km away
- 4.1south of the Fiji Islands · 1877 days ago · 181 km deep · 67 km away
- 4.3223 km SW of Vaini, Tonga · 1874 days ago · 174 km deep · 61 km away
- 5.8280 km SW of Vaini, Tonga · 1870 days ago · 157 km deep · 6 km away · felt by 2
- 4.7south of the Fiji Islands · 1868 days ago · 160 km deep · 40 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000ej3u. Read Wed, Sep 30, 2026, 8:32 PM UTC.