M4.3 earthquake 104 km ENE of ‘Ohonua, Tonga
A magnitude 4.3 earthquake struck 104 km ENE of ‘Ohonua, Tonga on Mon, Mar 24, 1986, 5:10 PM GMT+13 (04:10 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.9 24 km ESE 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), light
- Local time
- UTC
- 1986-03-24 04:10:47 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 21.123° S, 173.973° 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.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.924 km ESE of ‘Ohonua, Tonga · 14791 days ago · 33 km deep · 84 km away
- 4.573 km NE of Kolonga, Tonga · 14788 days ago · 160 km deep · 93 km away
- 5.695 km SSE of Pangai, Tonga · 14742 days ago · 33 km deep · 55 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002s6u. Read Tue, Sep 22, 2026, 7:17 AM UTC.