M5.2 earthquake 204 km SE of Hihifo, Tonga
A magnitude 5.2 earthquake struck 204 km SE of Hihifo, Tonga on Wed, Aug 20, 1986, 7:08 AM GMT-11 (18:08 UTC), 33 km (21 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.2 (mb, body-wave), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1986-08-20 18:08:43 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 17.345° S, 172.538° 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 2.2 and up: 1 in the 60 days after this one and 1 in the 30 days before it.
After
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002xbu. Read Thu, Oct 1, 2026, 9:43 AM UTC.