M4.5 earthquake 173 km W of Neiafu, Tonga
A magnitude 4.5 earthquake struck 173 km W of Neiafu, Tonga on Sun, Jun 28, 2020, 8:22 PM GMT+13 (07:22 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.9 150 km NW of Neiafu, 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
- 2020-06-28 07:22:07 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 18.533° S, 175.625° 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 10.1 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- Operator assigned
- Station coverage gap
- 83°
- 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: 2 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.9150 km NW of Neiafu, Tonga · 2281 days ago · 193 km deep · 94 km away · felt by 1
- 4.1198 km WNW of Pangai, Tonga · 2255 days ago · 273 km deep · 75 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000adj7. Read Thu, Oct 1, 2026, 6:31 AM UTC.