M4.5 earthquake 94 km ENE of Kolonga, Tonga
A magnitude 4.5 earthquake struck 94 km ENE of Kolonga, Tonga on Sat, Mar 28, 2020, 5:34 PM GMT+13 (04:34 UTC), 64 km (40 mi) below the surface.
A larger quake followed: M5.1 104 km E 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
- 2020-03-28 04:34:30 UTC
- Depth
- 64.4 km (40.0 mi), shallow
- Epicenter
- 20.721° S, 174.277° 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 8.5 km horizontally, 8.6 km in depth
- Magnitude uncertainty
- ±0.17
- Depth from
- From location
- Station coverage gap
- 134°
- Stations used
- 20
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 1 in the 30 days before it.
After
- 4.6118 km ENE of ‘Ohonua, Tonga · 2381 days ago · 10 km deep · 42 km away
- 4.6140 km E of ‘Ohonua, Tonga · 2359 days ago · 10 km deep · 97 km away
- 5.1104 km E of ‘Ohonua, Tonga · 2345 days ago · 10 km deep · 95 km away · felt by 2
- 4.8109 km E of ‘Ohonua, Tonga · 2345 days ago · 10 km deep · 82 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us70008kly. Read Sun, Oct 4, 2026, 9:01 AM UTC.