M4.8 earthquake 94 km N of Hihifo, Tonga
A magnitude 4.8 earthquake struck 94 km N of Hihifo, Tonga on Sat, Oct 5, 1985, 12:10 AM GMT-11 (11:10 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.2 94 km NNE 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
- 1985-10-05 11:10:36 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 15.112° S, 173.660° 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 4 in the 30 days before it.
After
- 4.444 km NE of Hihifo, Tonga · 14953 days ago · 53 km deep · 70 km away
- 5.294 km NNE of Hihifo, Tonga · 14944 days ago · 33 km deep · 36 km away
Before
Earthquakes todayTonga earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002kgf. Read Tue, Sep 22, 2026, 8:05 AM UTC.