M4.3 earthquake 178 km SW of Vaini, Tonga
A magnitude 4.3 earthquake struck 178 km SW of Vaini, Tonga on Fri, May 22, 2020, 10:26 AM GMT+13 (21:26 UTC), 353 km (219 mi) below the surface.
A larger quake followed: M5.3 120 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
- 4.3 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2020-05-21 21:26:30 UTC
- Depth
- 352.9 km (219.3 mi), deep
- Epicenter
- 22.469° S, 176.231° 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 14.0 km horizontally, 10.4 km in depth
- Magnitude uncertainty
- ±0.13
- Depth from
- From location
- Station coverage gap
- 138°
- Stations used
- 25
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 5 in the 30 days before it.
After
- 4.8208 km SW of ‘Ohonua, Tonga · 2324 days ago · 70 km deep · 47 km away
- 5.3120 km SSW of ‘Ohonua, Tonga · 2312 days ago · 22 km deep · 73 km away · felt by 1
- 4.4154 km WSW of Haveluloto, Tonga · 2287 days ago · 121 km deep · 71 km away
- 4.5139 km WSW of Haveluloto, Tonga · 2286 days ago · 147 km deep · 76 km away
- 4.4171 km SSW of ‘Ohonua, Tonga · 2281 days ago · 112 km deep · 47 km away
Before
- 4.5236 km SSW of ‘Ohonua, Tonga · 2336 days ago · 42 km deep · 84 km away
- 4.4201 km SSW of ‘Ohonua, Tonga · 2336 days ago · 38 km deep · 60 km away
- 4.6172 km SSW of Vaini, Tonga · 2343 days ago · 67 km deep · 27 km away
- 5.5100 km SW of ‘Ohonua, Tonga · 2355 days ago · 40 km deep · 87 km away · felt by 5
- 4.6142 km SW of Vaini, Tonga · 2356 days ago · 60 km deep · 36 km away
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000a1p7. Read Sun, Oct 4, 2026, 4:27 AM UTC.