M4.8 earthquake 109 km E of ‘Ohonua, Tonga
A magnitude 4.8 earthquake struck 109 km E of ‘Ohonua, Tonga on Mon, May 4, 2020, 4:37 AM GMT+13 (15:37 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.1 130 km SE of Pangai, Tonga. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.8 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2020-05-03 15:37:28 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 21.370° S, 173.892° 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 5.9 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.25
- Depth from
- Operator assigned
- Station coverage gap
- 125°
- Stations used
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.8 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.9165 km SE of ‘Ohonua, Tonga · 2344 days ago · 10 km deep · 98 km away
- 4.5135 km SE of ‘Ohonua, Tonga · 2320 days ago · 10 km deep · 99 km away
- 5.1130 km SE of Pangai, Tonga · 2305 days ago · 10 km deep · 79 km away
- 5.1134 km SE of Pangai, Tonga · 2299 days ago · 10 km deep · 78 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us70009cfn. Read Sun, Oct 4, 2026, 7:58 PM UTC.