M4.5 earthquake 246 km SSW of Vaini, Tonga
A magnitude 4.5 earthquake struck 246 km SSW of Vaini, Tonga on Tue, May 4, 2021, 3:20 PM GMT+13 (02:20 UTC), 105 km (65 mi) below the surface.
A larger quake followed: M4.7 288 km SSW of ‘Ohonua, 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, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-05-04 02:20:07 UTC
- Depth
- 105.4 km (65.5 mi), intermediate-depth
- Epicenter
- 23.061° S, 176.479° 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 16.3 km horizontally, 9.3 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- From location
- Station coverage gap
- 123°
- Stations used
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
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
- 4.6236 km SSW of ‘Ohonua, Tonga · 1948 days ago · 35 km deep · 71 km away
- 4.7288 km SSW of ‘Ohonua, Tonga · 1946 days ago · 35 km deep · 98 km away
- 4.5255 km SW of Vaini, Tonga · 1941 days ago · 32 km deep · 38 km away
- 4.5282 km SW of Vaini, Tonga · 1921 days ago · 184 km deep · 63 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000e221. Read Sun, Oct 4, 2026, 12:34 PM UTC.