M4.8 earthquake 65 km ESE of Hihifo, Tonga
A magnitude 4.8 earthquake struck 65 km ESE of Hihifo, Tonga on Wed, Sep 24, 1986, 3:16 AM GMT-11 (14:16 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.2 40 km SSW of Hihifo, 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), light
- Local time
- UTC
- 1986-09-24 14:16:11 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 16.267° S, 173.281° 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 1.8 and up: 2 in the 60 days after this one and 2 in the 30 days before it.
After
- 5.240 km SSW of Hihifo, Tonga · 14585 days ago · 109 km deep · 71 km away
- 5.160 km ENE of Hihifo, Tonga · 14565 days ago · 165 km deep · 53 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002ybc. Read Tue, Sep 22, 2026, 7:54 AM UTC.