M4.7 earthquake 83 km NNE of Hihifo, Tonga
A magnitude 4.7 earthquake struck 83 km NNE of Hihifo, Tonga on Fri, Oct 24, 1986, 12:04 AM GMT-11 (11:04 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.1 60 km ENE 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
- 4.7 (mb), light
- Local time
- UTC
- 1986-10-24 11:04:18 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 15.275° S, 173.449° 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 1.7 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 5.160 km ENE of Hihifo, Tonga · 14574 days ago · 165 km deep · 61 km away
- 5.049 km NNW of Hihifo, Tonga · 14571 days ago · 105 km deep · 67 km away
- 4.6125 km N of Hihifo, Tonga · 14558 days ago · 33 km deep · 77 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002za0. Read Wed, Sep 30, 2026, 9:50 PM UTC.